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New Study Suggests Wind Farms Can Cause Climate Change

nachiketas writes "A study led by Liming Zhou, Research Associate Professor at the Department of Atmospheric and Environmental Sciences at the University of New York concludes that large wind farms could noticeably impact local weather patterns. According to Professor Zhou: 'While converting wind's kinetic energy into electricity, wind turbines modify surface-atmosphere exchanges and transfer of energy, momentum, mass and moisture within the atmosphere. These changes, if spatially large enough, might have noticeable impacts on local to regional weather and climate.'"

384 comments

  1. Local impact = climate change? by gtall · · Score: 5, Insightful

    Who wrote that headline and how can we make him stop writing new ones.

    1. Re:Local impact = climate change? by Anonymous Coward · · Score: 1, Insightful

      These changes, if spatially large enough, might have noticeable impacts on local to regional weather and climate.

      I think the implication is that a world covered in wind farms would experience climate change, which is improbably indeed

    2. Re:Local impact = climate change? by SJHillman · · Score: 3, Informative

      "These changes, if spatially large enough, might have noticeable impacts on local to regional weather and climate."

      Headline matches the summary.

    3. Re:Local impact = climate change? by l2718 · · Score: 1, Interesting

      Even so, these changes are wholly dependent on these machines - remove the wind fanss and the weather will revert to its previous state. This has nothing to do with climate change, which is a change to the underlying system.

    4. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      It's still an awful headline and summary.

    5. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Chaos Theory, Butterfly Effect ...

    6. Re:Local impact = climate change? by Anonymous Coward · · Score: 2, Insightful

      It's deliberately misleading to generate page clicks. Gutter press level, basically.

    7. Re:Local impact = climate change? by Joce640k · · Score: 0

      Who wrote that headline and how can we make him stop writing new ones.

      He probably got plenty of clicks, which was his intention.

      OTOH the non-thinkers probably just lost a few more brain cells so yes, he should be taken out back and shot.

      --
      No sig today...
    8. Re:Local impact = climate change? by cyfer2000 · · Score: 1, Insightful

      That's also a climate change.

      --
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    9. Re:Local impact = climate change? by Grax · · Score: 3, Funny

      Change is bad. Stop changing things.

    10. Re:Local impact = climate change? by jellomizer · · Score: 1

      Well if you change enough of the local areas then you could effect a global scale.
      Everything you choose has a trade-offs. The best defense isn't "green energy" but energy diversity. So we limit the hazards of our trade-offs and if one trade-off becomes too expensive then you can switch to an other one without have to do a major change.

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    11. Re:Local impact = climate change? by Joce640k · · Score: 0

      Follow up: I can understand this from the Daily Telegraph, but Discovery channel is repeating it...

      http://news.discovery.com/earth/hot-wind-farms-120429.html

      Expect it to be on Fox News with the next 20 minutes.

      --
      No sig today...
    12. Re:Local impact = climate change? by OzPeter · · Score: 3, Funny

      "These changes, if spatially large enough, might have noticeable impacts on local to regional weather and climate."

      Headline matches the summary.

      yes it matches .. sort of. The summary uses words like 'might' and 'could', but the headline uses 'can'. IMHO 'can' denotes something that is far more likely to occur than 'might' or 'could' - hence the headline is effectively editorializing (even if not explicitly done)

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    13. Re:Local impact = climate change? by jellomizer · · Score: 4, Insightful

      Not really, once you remove the turbines, damage may have been done, you may have changed your treeline structure and it will take many years to get back to normal.

      --
      If something is so important that you feel the need to post it on the internet... It probably isn't that important.
    14. Re:Local impact = climate change? by ArcherB · · Score: 2

      out of so called "destruction", new things arrive.

      without much of the so called destruction, we wouldn't exist.

      True, but now that we do exist, I would like the destruction to stop, thank you very much.

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    15. Re:Local impact = climate change? by starcraftsicko · · Score: 5, Informative

      This has nothing to do with climate change, which is a change to the underlying system.

      By that logic, there is no such thing as climate change. CO2 emissions do not change the underlying system, and were they do stop completely, the system would, in time, revert/adjust. By your logic, climate change can't exist unless thermodynamic laws (or whatever) are changed.

      Anyone who thinks that the deployment of [technologies] across large portions of Earth's surface will not have significant impact is delusional. Don't be that guy.

      All "clean" energy, whether wind, solar, hydro, coal, fission, etc. is merely "relatively" clean. Wind kills birds and warms areas downstream. Coal makes smog and dumps carbon. Hydro kills fish and and alters local climate. Fission makes giant lizards emerge from Tokyo bay...

    16. Re:Local impact = climate change? by ATMAvatar · · Score: 5, Funny

      Female reporter: "Those windmills will keep them cool!"

      Morbo: "WINDMILLS DO NOT WORK THAT WAY! GOODNIGHT!"

      --
      "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
    17. Re:Local impact = climate change? by jimbolauski · · Score: 1

      Even so, these changes are wholly dependent on these machines - remove the wind fans and the weather will revert to its previous state. This has nothing to do with climate change, which is a change to the underlying system.

      What would you define as climate change then, if you take the extra CO2 and other man made gasses out of the air weather will revert back to its previous state as well as the removal of these giant structures littered across the country side.

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    18. Re:Local impact = climate change? by ilguido · · Score: 4, Insightful

      No, who did tell you that the world (the weather, in this case) works as a linear system? Is the Sahara desert turning back to a green land since we stopped sheep farming/overcultivating there? Is the Aral lake taking back its lost water now, when none is pumping out its water?

    19. Re:Local impact = climate change? by grunfeld · · Score: 1

      maybe the author of the study should of used words like definite maybe, if one or two trees where planted it would change the results of this "study" Fine work fine work not

    20. Re:Local impact = climate change? by Knitebane · · Score: 0

      By that logic, there is no such thing as climate change.

      ...and the student was enlightened.

      --
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    21. Re:Local impact = climate change? by a_n_d_e_r_s · · Score: 3, Insightful

      Actually they are right.

      But also what should be in the news:

      cars affect climate change
      houses affect climate change
      everyone by breathing affect climate change.

      So its nothing new - move along. Everything affects climate change even the wings of a colibri in the amazonas...

      --
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    22. Re:Local impact = climate change? by Anonymous Coward · · Score: 5, Informative

      Cats, power lines and shiny glass buildings kill more birds than wind farms. Of course we don't have that many wind turbines yet, but still the figures don't look that scary. http://science.howstuffworks.com/environmental/green-science/wind-turbine-kill-birds.htm

      Wind farms apparently do weird shit to bats though: http://www.newscientist.com/article/dn14593-wind-turbines-make-bat-lungs-explode.html

    23. Re:Local impact = climate change? by wisnoskij · · Score: 2

      That is not accurate at all.
      If you change the climate then you necessarily change the environment, which in tun effects the climate.
      If you turn a desert into a swamp or a forest into glacier then there is no easy way to go back.

      Not only will even a small amount of climate change kill most indigenous life but it will also change the landscape enough that no matter how much time you give it after you remove the wind farms the climate very well might never go back.

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    24. Re:Local impact = climate change? by pz · · Score: 1

      Coal makes smog and dumps carbon.

      You forgot that coal creates acid rain that generally kills off wildlife and not-so-slowly dissolves buildings away.

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    25. Re:Local impact = climate change? by milkmage · · Score: 2

      i don't know... FTA

      “This makes sense, since at night the ground becomes much cooler than the air just a few hundred meters above the surface, and the wind farms generate gentle turbulence near the ground that causes these to mix together, thus the ground doesn't get quite as cool. This same strategy is commonly used by fruit growers (who fly helicopters over the orchards rather than windmills) to combat early morning frosts.”

      sounds like the inverse of blowing on hot food.. which, IMO, doesn't qualify as climate change. if you stir the air, you're going to get a change in temp.. it doesn't fall into the same category as greenhouse gasses etc... and this mostly applies at night - whereas "actual" climate change doesn't care what time of day it is.

      "Usually at night the air closer to the ground becomes colder when the sun goes down and the earth cools."

    26. Re:Local impact = climate change? by Kreigaffe · · Score: 4, Insightful

      Stop conflating climate with a global system.

      Localities also have a climate. Climate does not equal global climate. Climate is merely the weather over a significant period of time of a particular location -- your back yard has a climate, though it likely matches your neighbor's climate. Valleys have a climate different than the mountains that surround them.

      In short, in your attempt to be a pedant and nitpick the headline and the summary, you have instead shown yourself a fool. A foolish fool.

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    27. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Yes hide the truth fools, this environmental stuff is just a scam to charge you for the air you breath idiots. Fools and the new religion.

    28. Re:Local impact = climate change? by RaceProUK · · Score: 1

      Wind farms can cause climate change, but then it's equally valid to say I can spontaneously vanish and reappear in Hawai'i. How probable these events are is another thing entirely.

      --
      No colour or religion ever stopped the bullet from a gun
    29. Re:Local impact = climate change? by RaceProUK · · Score: 1

      Her name's Linda, IIRC.

      --
      No colour or religion ever stopped the bullet from a gun
    30. Re:Local impact = climate change? by tom17 · · Score: 1

      I wonder if this is why I see weird short-windmills scattered throughout the vineyards in the Niagara-On-The-Lake region...

    31. Re:Local impact = climate change? by kelemvor4 · · Score: 1

      Who wrote that headline and how can we make him stop writing new ones.

      Call The Telegraph and complain would be my suggestion. Author: Louise Gray, Environment Correspondent
      Telegraph General Switchboard +44 20 7931 2000

    32. Re:Local impact = climate change? by Vintermann · · Score: 0

      whereas "actual" climate change doesn't care what time of day it is.

      This isn't quite right. One of the main predictions of climate change from CO2 (predicted since the 1850s or so) is that nights will warm more than days, and winters more than summers. Windmills sound like they may cause a similar smoothing effect on temperatures - though of course, since they don't actually trap any more heat in the system, it isn't nearly as nasty (nor is it remotely as irreversible).

      --
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    33. Re:Local impact = climate change? by CanHasDIY · · Score: 2

      IMHO 'can' denotes something that is far more likely to occur than 'might' or 'could' - hence the headline is effectively editorializing (even if not explicitly done)

      'could' is the future tense of the word 'can.' They mean precisely the same thing.

      Now you know.

      --
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    34. Re:Local impact = climate change? by es330td · · Score: 2, Insightful

      and not-so-slowly dissolves buildings away.

      The broken window economics folks might consider this a positive.

    35. Re:Local impact = climate change? by ghostdoc · · Score: 1

      There is no such thing as a global climate though. There are a number of different climates which interact in a global system, but it's not a global climate.

      --
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    36. Re:Local impact = climate change? by Anonymous Coward · · Score: 3, Insightful

      Damage? Who said that climate change is damage? Often, yeah, it makes for unfortunate situations, like droughts or increased floods, or grazing land turning to desert. Other times it turns grazing land into farm-able land, or in this case, lessens the effect of windstorms. (oh so slightly).

    37. Re:Local impact = climate change? by AmiMoJo · · Score: 1

      "Climate change" generally refers to a world-wide phenomenon. What TFA actually says is that the ground under a wind farm can be slightly warmer due to the turbines. The effect is highly localized and not at all worrisome like actual Climate Change is.

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    38. Re:Local impact = climate change? by Nimey · · Score: 1

      Are under the impression that Slashdot is /not/ gutter press?

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    39. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      I was noticing less bird poop on my cars recently. Must be the 40k birds that are not around anymore!

    40. Re:Local impact = climate change? by Firethorn · · Score: 1

      It could just be a Mark 1 wind farm. Individual turbines have gotten a lot bigger and taller over the years.

      --
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    41. Re:Local impact = climate change? by NatasRevol · · Score: 1

      My though was:

      How often does the wind blow at night?

      Every place I've ever lived, the wind starts up late morning and calms down about sunset.

      --
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    42. Re:Local impact = climate change? by jkflying · · Score: 5, Informative

      Coal doesn't make whole areas uninhabitable

      Yes it does. Ever seen a strip mine?

      --
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    43. Re:Local impact = climate change? by CanHasDIY · · Score: 1

      if you stir the air, you're going to get a change in temp.. it doesn't fall into the same category as greenhouse gasses etc... and this mostly applies at night - whereas "actual" climate change doesn't care what time of day it is.

      While I agree with the premise that this doesn't really qualify as climate change, I do have to wonder what possible long term effects we would see from doing it [stirring the air] every day for an extended period of time...

      --
      An enigma, wrapped in a riddle, shrouded in bacon and cheese
    44. Re:Local impact = climate change? by KhabaLox · · Score: 1

      if you take the extra CO2 and other man made gasses out of the air

      Do you know how incredibly hard and expensive that is? Much more so than dismantling (or simply turning off) turbines.

      Anyways, the turbines appear to only be causing relatively minor alterations to local climate. They are operating on a vastly different scale than CO2 and methane.

      --
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    45. Re:Local impact = climate change? by CanHasDIY · · Score: 1

      Are under the impression that Slashdot is /not/ gutter press?

      Indeed, to qualify they would have to publish something terrible themselves, as opposed to linking to other people's terrible blog posts. At this point, more like a gutter press aggregator...

      Oh, wait...

      Nevermind, as you were.

      --
      An enigma, wrapped in a riddle, shrouded in bacon and cheese
    46. Re:Local impact = climate change? by jkflying · · Score: 2, Informative

      No, it's the conditional. The future tense (in this case) is "will", the future conditional is "would".

      I can walk.
      I will walk, tomorrow.
      I could walk, if I had legs.
      I would walk tomorrow, if I had legs.

      Could implies that there will be an if coming up soon.

      --
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    47. Re:Local impact = climate change? by dzfoo · · Score: 1

      Not to mention, who will decide to just switch off the turbines once we build a system large enough that our population depends on it as its primary source of energy?

      If it's big enough to cause climate change, it's probable that enough has been invested in it.

      --
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    48. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      There are a number of different climates which interact in a global system, but it's not a global climate.

      Uh, actually that's exactly what a global climate is.
      Your argument is like saying that there's no such thing as a human body, just a series of cells which interact.

      Fuck, it's like I woke up back in the 7th grade or something.

    49. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Trump?

    50. Re:Local impact = climate change? by CanHasDIY · · Score: 1

      It changes the climate resulting in less destructive weather.

      That explains the increase in tornadoes we've seen over the last few years...

      --
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    51. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      YES, Let us repeat:
      Who wrote that headline and how can we make him stop writing new ones.

    52. Re:Local impact = climate change? by RabidReindeer · · Score: 1

      Anything that redirects how energy flows affects local conditions. That's just basic Thermodynamics.

      Scaling that up to be "climate change", however, is a bit of a stretch. While there are things that you can do that are catalytic in nature and therefore self-leveraging, such as chloroflourocarbons, a windmill isn't one of them. To get a serious effect on climate, you'd need a serious number of windmills.

    53. Re:Local impact = climate change? by multimediavt · · Score: 3, Informative

      These changes, if spatially large enough, might have noticeable impacts on local to regional weather and climate.

      I think the implication is that a world covered in wind farms would experience climate change, which is improbably indeed

      Umm, no. From a few sentences around the quote you cherry picked FTFA:

      However Prof Zhou pointed out the most extreme changes were just at night and the overall changes may be smaller.

      Also, it is much smaller than the estimated change caused by other factors such as man made global warming.

      “Overall, the warming effect reported in this study is local and is small compared to the strong background year-to-year land surface temperature changes,” he added.

      The study read: "Despite debates regarding the possible impacts of wind farms on regional to global scale weather and climate, modelling studies agree that they can significantly affect local scale meteorology."

      The effect is localized, remains localized, and does not have anywhere near the same impact as "other factors such as man made global warming". The use of the word "extreme" to categorize a 1.37F change in overnight temperatures in a ten year period is a bit, well, extreme. It's good that they did notice this effect and my guess is something will be done to the turbine design to mitigate this 0.72C (1.37F) over ten years change in localized, overnight temperatures near wind turbines. This is much ado about nothing but I am sure the climate change extremists will be all over it, while the rest of us who do believe and are trying to do something rational about climate change will put this on a low priority. The benefits of renewable energy still outweigh that ridiculously low cost with current turbine designs. If things stay static this might be a problem. Given that the research is out, I am sure there will be a reaction. The important thing is not to come unhinged and react a bit too wildly to every bit of negative data that comes up. This is really not that big a problem it can't be designed or engineered around, and I believe even Prof. Zhou would agree.

    54. Re:Local impact = climate change? by krotkruton · · Score: 3, Interesting

      Yes, I grew up on one, outside the town of Coal City (with neighboring towns of Carbon Hill and Diamond, no joke). It's the closest thing I've seen to paradise. Here's a neighbor's house that's on the market, for reference of habitability.

      Ok, I'm not saying strip mines are a good thing, but everything we do affects the environment. Our advancements in agriculture have significantly increased humidity in the whole Midwest, and everyone knows the problems caused by miles of asphalt and buildings. It'd be crazy not to assume that wind turbines do the same, but how much more do they affect an area compared to an office building of the same size?

    55. Re:Local impact = climate change? by RaceProUK · · Score: 1

      Isn't that essentially what TFA is saying though? With enough wind farms, climate change will happen, where enough ~= really big number.

      --
      No colour or religion ever stopped the bullet from a gun
    56. Re:Local impact = climate change? by Anonymous Coward · · Score: 1

      > ... it will take many years to get back to normal.

      Maybe windmills are the new normal.

    57. Re:Local impact = climate change? by hamburger+lady · · Score: 1

      that's like arguing that house fires cause climate change, if everybody's house catches on fire today.

      --

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    58. Re:Local impact = climate change? by SJHillman · · Score: 1

      If the number of house fires increase exponentially in the future, like wind farms might, then it could cause climate change. If we erect wind farms on a huge scale, then they could collectively have an effect on the overall climate.

    59. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      First Trees will grow taller because windmills will slow down the wind.
      Second Windmills will probably alter rainfall patterns greatly, my guess is that they will cause rainfall changes ahead of the windfarm with increases and behind will get drier. This is typical of mountains.
      Third Wind Farms derive their power from a really odd source. It is primarily tidal power. As a result the effect will include increasing winds in other locations and laterations of overall atmospheric patterns some. (Not a lot but some)

    60. Re:Local impact = climate change? by MikeBabcock · · Score: 5, Insightful

      You missed asphalt ... which absorbs heat during the day and slowly radiates it at night, completely altering local weather in and near large cities.

      --
      - Michael T. Babcock (Yes, I blog)
    61. Re:Local impact = climate change? by flaming+error · · Score: 2

      I think GW is about a global increase of atmospheric temperature.

      FTA, it's not clear to me that there is an increase of atmospheric temperature, even in that locale. All that's mentioned is the ground staying warmer; it doesn't say anything about what happens in the air above the turbines.

    62. Re:Local impact = climate change? by cpu6502 · · Score: 1

      >>>improbably indeed

      Disagree. You're sucking energy out of the system and that will have an impact, just as turbines in a river slow the flow of the water.

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    63. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      if you stir the air, you're going to get a change in temp.. it doesn't fall into the same category as greenhouse gasses etc... and this mostly applies at night - whereas "actual" climate change doesn't care what time of day it is.

      While I agree with the premise that this doesn't really qualify as climate change, I do have to wonder what possible long term effects we would see from doing it [stirring the air] every day for an extended period of time...

      Compared to air traffic around airports, which probably has a similar effect (they even said its like a helicopter)? And that's just starts and landings, not even the contrails.

    64. Re:Local impact = climate change? by polar+red · · Score: 1

      as well as the removal of these giant structures littered across the country side.

      and replant billions of trees ?

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    65. Re:Local impact = climate change? by CanHasDIY · · Score: 2

      Wrong - "can" implies an ability to do something, "will" implies a desire or need to do something.

      Just because you can have sex with a man, doesn't mean you will.

      Even if you could walk [at some point in the future], it doesn't mean you will.


      Have we really fallen so far as a society that people no longer know the difference between basic words like can and will? Shit, no wonder I can't understand half the garbage people put online - they themselves have no idea what they're actually saying.

      --
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    66. Re:Local impact = climate change? by phantomfive · · Score: 1

      I don't know if you are being sarcastic, but surprisingly the answer to the first question seems to be yes. And the problem with Aral lake is that people still are diverting water from there. The same problem happens with Owens lake in California.

      --
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    67. Re:Local impact = climate change? by polar+red · · Score: 1

      You're sucking energy out of the system

      what system? the earth ? Then you assume the energy is being used outside the planet earth ? Let's not forget that the laws of thermodynamics dictate energy is never destroyed, only transformed into other forms of energy.

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    68. Re:Local impact = climate change? by polar+red · · Score: 1

      Yes, stop changing the amount of CO2 in the air please.

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    69. Re:Local impact = climate change? by snadrus · · Score: 1

      you forgot solar. what does that do?

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    70. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Or: http://www.cnn.com/2012/03/31/us/georgia-coal-power/index.html?iref=allsearch

      Summary: There's a high cancer rate in a town near a coal power plant. The cancer seems to be caused by uranium in the ground water. The owner of the plant has bought some houses in the town, tearing them down, and capping the water wells. However, it has not been proven that the plant is the source of the uranium.

    71. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Yes it does. Ever seen Beijing?

    72. Re:Local impact = climate change? by ColdWetDog · · Score: 2

      Yes it does. Ever seen Beijing?

      No, and neither has anyone else lately.

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    73. Re:Local impact = climate change? by tom17 · · Score: 1

      But these were shorter and smaller..

      These were like 2-3 people high at a guess. They did not look at all suitable for power generation (uneducated guess by me).

      Preventing a ground frost through turbulence does, in fact, sound like a reasonable explanation to me now. Would make sense with a delicate crop like grape vines for winemaking...

    74. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Slashdot has been taken over by Climate Change/Global Warming/Save Gaia whackjobs!
      I don't know why I even come here anymore - anybody know of a Slashdot 12 step program???

    75. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      your back yard has a climate, though it likely matches your neighbor's climate

      My backyard climate is significantly different from that of my neighbour four lots away. Coastal mountainous microclimates can be bizarre.

    76. Re:Local impact = climate change? by tom17 · · Score: 1

      Oh, I just realised what you meant.. What I saw could have been an older generation.

      The white blades looked pretty clean & newish to me, but that means nothing really. I have also seen windmills over 10 years ago that look like your typical large power generating one these days. How old are these Mark 1's that you talk of, likely to be?

    77. Re:Local impact = climate change? by Anonymous Coward · · Score: 1

      Have we really fallen so far as a society that people no longer know the difference between basic words like can and will? Shit, no wonder I can't understand half the garbage people put online - they themselves have no idea what they're actually saying.

      The comparison was between 'can' and 'could'.

    78. Re:Local impact = climate change? by tom17 · · Score: 1
    79. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      everyone by breathing affect climate change.

      NO!! Just stop with this shit

      You do NOT affect climate change by breathing. Unless your food is sequestered carbon like COAL, your breathing is part of the normal carbon cycle.

      Climate change is only a result of change to rate of sequestered carbon being released and stored. Everything else is just bullshit thrown around by people that do not understand what is GW.

    80. Re:Local impact = climate change? by sjames · · Score: 1

      Climate vs. weather is a difference in time scale, but implies nothing about the scale in space. So, a long term effect on weather in a localized area == a climate change in that area but is not necessarily a global climate change.

    81. Re:Local impact = climate change? by hamburger+lady · · Score: 1

      if, might, could.

      --

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    82. Re:Local impact = climate change? by sjames · · Score: 1

      It often does because global climate change has been a hot topic and people get lazy with words, but no. Climate change with no modifier leaves the reader to infer scale from the surrounding discussion. In this case, it is local.

    83. Re:Local impact = climate change? by Cute+Fuzzy+Bunny · · Score: 1

      He did say 'spatially', so maybe its windmills in space?

      Humongous wind arrays all around the bay area including the well known altamont pass. No apparent change to the area weather as a result in fact they have the nicest weather around. I call bullshit. Maybe setting up large windmill arrays gets you warm predictable weather almost year round.

    84. Re:Local impact = climate change? by Anomalyst · · Score: 1

      Sorry "many years" most would consider is a timespan pertaining to climate

      --
      There is no right to feel safe thru security vaudeville at the expense of everyone's freedom, privacy and tax money.
    85. Re:Local impact = climate change? by windcask · · Score: 1

      What are you afraid of? That your narrative of so-called "clean energy" might come crashing down around your feet?

    86. Re:Local impact = climate change? by 1u3hr · · Score: 3, Insightful
      From TFA, the ground temperature at night can go up, by a maximum of 1 degree, by mixing warmer air from above down to the surface. But its only areas close to turbines. And its not like the greenhouse effect that traps more solar energy, the average over the volume remains the same.

      The annoying thing is that we all know now that the denialists are going to add this to their talking points. "Hockey stick", "Climategate", "Wind farms cause warming, so we might as well burn oil shale".

    87. Re:Local impact = climate change? by ilguido · · Score: 1

      I don't know if you are being sarcastic, but surprisingly the answer to the first question seems to be yes.

      Yeah, really. Science news at 11. That smartass said (in 2008/2009) that in the last 20 years Sahara had recovered a lot of land, someone should tell him and the NG that the Sahel droughts are cyclical, with the last major one that happened in 1984/1985/1986 (~20 years before the study). Now there's a new one, with more incoming desertification.

      And the problem with Aral lake is that people still are diverting water from there. The same problem happens with Owens lake in California.

      The problem with lake Aral is that the local ecosystem is now totally messed up.

    88. Re:Local impact = climate change? by Anomalyst · · Score: 1

      That's a heck of an effective hummingbird (or helicoptor or high-end brand of cigarette lighters depending on your choice of definition)

      --
      There is no right to feel safe thru security vaudeville at the expense of everyone's freedom, privacy and tax money.
    89. Re:Local impact = climate change? by Tanktalus · · Score: 1

      Here's a neighbor's house that's on the market, for reference of habitability.

      I'm not sure why, but the first thought popping into my head was: did the real estate agent pay appropriate license fees for the distribution of that music?

    90. Re:Local impact = climate change? by scot4875 · · Score: 2

      The weather system. It's not that difficult to see what GP meant, unless you're being deliberately dense.

      --Jeremy

      --
      Jesus was a liberal
    91. Re:Local impact = climate change? by polar+red · · Score: 1

      where does this weather system start ? at the ground ? above the trees ? 2m above the ground ? Are houses included ?

      --
      Yes, I'm left. You have a problem with that?
    92. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      And what is "normal"?? Man came to the great plains and broke up the sod, the Great Dust Bowl was created. Man came to the mountains and mind for gold [add your favouite mineral] and erosion was created. Man came to the forests and Clear Cutting was created. All of which will take years to get back to "normal".

    93. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Since we need thermal plant as a baseline power to compensate wind farms variability, we're going to do both anyway.

    94. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Turbines are first a primary source of PR, not energy. While they produce electricity, they don't produce nearly enough of it and won't with the current technology. With their pitiful charge factor of 23%, a 2MW rated wind turbine will produce in AVERAGE 23*2/100=0.46MW of power. The US needs 4000TWh of electric energy per year, so in average 4e6GW/(24*365)=628GW of power. So, if production and consumption varied at the same time, a very optimistic assumption, you'd need 1365000 2MW-rated wind turbines to power the US. Reality would be even worse since demand and production would not match.

    95. Re:Local impact = climate change? by jkflying · · Score: 1

      Thank you, AC.

      --
      Help I am stuck in a signature factory!
    96. Re:Local impact = climate change? by jkflying · · Score: 1

      First, as the AC correctly surmised, the argument was about 'can' and 'could'.

      Secondly, 'will' has two meanings. I was referring to the one which was relevant to the context it was used in, an argument of future/present tenses, where it is used as a future 'modifier' on verbs. Consider if replacing 'will' with "going to" makes sense. If so, then it means it is the "simple future" tense, and has nothing to do with a desire or need to do something. See http://www.englishpage.com/verbpage/simplefuture.html

      The 'will' you reference in your link to is a noun in the context of "He has a strong will and stubborn personality." However, both of your sentence examples show are the simple future, not the one you link to.

      Consider:

      Just because you can have sex with a man, doesn't mean you will.

      Just because you can have sex with a man, doesn't mean you are going to.

      See what I did there?
      There is more to English than being able to form parse-able sentences.

      If you were being sarcastic, I apologise. =)

      --
      Help I am stuck in a signature factory!
    97. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Centralia in Pensylvania.

    98. Re:Local impact = climate change? by jkflying · · Score: 1

      It'd be crazy not to assume that wind turbines do the same, but how much more do they affect an area compared to an office building of the same size?

      Probably less than an office building. Less frontal area, less foundation construction, less chance of a bird flying into them. The only thing that wind farms do that office buildings don't is stir up the inversion layers, so sometimes it will be warmer at night than it would have been; then again, it will sometimes be cooler during the day for exactly the same reason.

      --
      Help I am stuck in a signature factory!
    99. Re:Local impact = climate change? by HiThere · · Score: 1

      It's not a all clear that once you have moved off a climate pattern, you will ever move back into it, even if the original cause is removed. Climate patterns tend to be unstable equilibria, and as such if you move from one to another, the most probable retro-trajectory may well not be back to where you started. Think of it as similar to billiards played on a table with LOTS of shallow indentations...on the tops of shallow hills with gradual sides. That's a much oversimplified model, of course ... for one thing it's wrong to depict a climate pattern as even semi-stable, but it does tend to oscillate around the same set of attractors. Move it slightly away from where it is, and it may be more attracted to a different set of attractors.

      CAUTION: I am not a climate scientist. Don't take these models too seriously.

      OTOH, climates are built out of an accumulation of local weather patterns over both time an space. So lots of wind farms over lots of area can, indeed, be expected to change both the weather and the climate. But note that this is true for ALL forms of energy generation. You can only pick what seems the best choice. Wind farms convert motion to heat within the system without adding additional energy. This may well have LESS effect, but it will still have effect. Slowing the winds for on thing. (But you need LOTS of wind farms to slow the winds very much, and skyscrapers may be just as effective at that. Or planting a forest. Both cause added friction of wind against surfaces, converting motion into heat.)

      Anyone who is surprised that enough windfarms might affect the climate is just not thinking. Even paving roads affects the climate, and how it affects the climate depends on what color the pavement is.

      --

      I think we've pushed this "anyone can grow up to be president" thing too far.
    100. Re:Local impact = climate change? by ChrisMaple · · Score: 1

      Inversion layers are infamous for trapping pollution, sometimes with fatal results. Although it seems unlikely that an inversion layer would be significant if there's enough wind to run a wind turbine, disrupting an inversion layer sounds like a plus.

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    101. Re:Local impact = climate change? by budgenator · · Score: 1

      More than likely, My Uncle had a beef farm across the street Hyot's cherry orchard had erected a large windmill like fan specifically to combat frost. Sweet cherry trees blossom early and a frost can really clobber a crop. Last month I was planting a cherry tree in the garden, it was 75F and the tree was in full bloom and crawling with honey bees, two days later hard frost wiped out all of the blossoms; I'm in SE Michigan.

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    102. Re:Local impact = climate change? by cpu6502 · · Score: 1

      >>>what system? the earth ?

      The wind dumbfuck. The windmills will suck energy from the wind, and make it move slower, which will affect weather in the short term, and downwind-climate in the long term.

      --
      My AC stalker: " I personally agree with your posts most of the time, but that won't keep me from modding you troll"
    103. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      I love how I opened the page for the sole reason of finding out how quickly someone made a Morbo reference. Thank you, good sir.

    104. Re:Local impact = climate change? by ChrisMaple · · Score: 1

      Reading your wikipedia links, about the only thing that can be said about the causes/prediction of Sahel droughts is that they're a multiyear phenomenon related to the temperature of part of the Atlantic. Any claim for them being cyclical is not supported by history because the time between droughts is quite erratic.

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    105. Re:Local impact = climate change? by Muros · · Score: 2

      You have some slightly dodgy math there. At 0.46MW production, your turbine provides 0.46*24*365MWh per year, or 4029.6MWh. To produce 4000000000MWh you need 992655 of them, not 1365000. Even if your 37% extra were needed, you'd still be talking about 1 turbine per 7 square kilometres, or 1 per 230 population. Not exactly an impossible task. Besides, nobody is going to advocate relying completely on something as unpredictable as wind power. There will always be a need for reliable base load production. This can be provided by nuclear, geothermal, and even solar if you are using molten salt generators. Bio-fuels have their place too; I wouldn't suggest that arable land should be diverted to energy production, but there are agricultural by-products that can be used for old fashioned combustion power generation, like corn husks, methane from slurry, etc. Dismissing wind power as PR is silly though. People have been using wind power for centuries, and efficiencies are getting better.

    106. Re:Local impact = climate change? by CanHasDIY · · Score: 1

      First, as the AC correctly surmised, the argument was about 'can' and 'could'.

      And as I accurately stated, 'can' and 'could' are merely different modes of the same word.

      Secondly, 'will' has two meanings. I was referring to the one which was relevant to the context it was used in, an argument of future/present tenses, where it is used as a future 'modifier' on verbs.

      Actually, it has 5 meanings, which you would know if you had followed the link I provided. However, the number of meanings is non sequitur, as they don't change the fact that 'will' has a completely different meaning than 'can.' Period. Look it up.

      Consider if replacing 'will' with "going to" makes sense. If so, then it means it is the "simple future" tense, and has nothing to do with a desire or need to do something. See http://www.englishpage.com/verbpage/simplefuture.html

      Doesn't change the fact that they mean different things; 'will' is compulsory, i.e. must happen, whereas 'can' implies an ability but not necessarily a compulsion to do so. Period. Look it up in a dictionary, not some random website with the word "English" in the name.

      The 'will' you reference in your link to is a noun in the context of "He has a strong will and stubborn personality." However, both of your sentence examples show are the simple future, not the one you link to.

      Just checked it, there are no less than 8 different verbal modes for the word 'will,' most of which, save the abstract, define a compulsory action.

      Consider:

      Just because you can have sex with a man, doesn't mean you will.

      Just because you can have sex with a man, doesn't mean you are going to.

      See what I did there?

      Nothing notable; let me show you what you did wrong:

      Just because you have the ability to have sex with a man, doesn't mean you are compelled to

      There is more to English than being able to form parse-able sentences.

      Yes, there is, but if a person can't (can not) or won't (will not) understand the basics of the language, there's no point in going any deeper.

      See what I did there?

      --
      An enigma, wrapped in a riddle, shrouded in bacon and cheese
    107. Re:Local impact = climate change? by Muros · · Score: 2

      Second Windmills will probably alter rainfall patterns greatly, my guess is that they will cause rainfall changes ahead of the windfarm with increases and behind will get drier. This is typical of mountains.

      The density at which windmills would need to be placed to provide a significant portion of the US electricity generation would not be anything like a mountain range for altering airflow. More like the effect of some trees planted across the continent a few miles apart from each other.

      Third Wind Farms derive their power from a really odd source. It is primarily tidal power. As a result the effect will include increasing winds in other locations and laterations of overall atmospheric patterns some. (Not a lot but some)

      Winds are not tidal. They are convection currents normalising air pressure between areas of the earths surface that are not equally heated by the sun, due to local differences such as reflectivity, heat absorbtion capability of the surface, cloud cover, angle of surface to sunshine, etc.

    108. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Why does this reasonable view appear only when rationalizing green energy?

    109. Re:Local impact = climate change? by bolthole · · Score: 1
      Stop using words like "conflating" (if you want anyone to pay attention to what you write)

      In short, in your attempt to be a pedant and nitpick the headline and the summary, you have instead shown yourself a fool. A foolish fool.

      but he still wins, because almost everyone will have read his post, but stopped reading yours after the second word.

    110. Re:Local impact = climate change? by lgw · · Score: 1

      Here's a fun one: right now as we speak (on a geologic time scale), Africa is breaking along plate lines, and the part that's moving north is closing the Strait of Gibraltar and cutting off the Med. This will cause the Med to evaporate off, and as a result the temperatures in the center of what's now the Med will (per models) pass the boiling point of water on a hot day.

      That's happening as we speak (don't rush to sell land, though, "right now" is the next 10k to 100K years). Not all disasters are man-made, nor the worst nor biggest.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    111. Re:Local impact = climate change? by budgenator · · Score: 1

      In Hawaii, on Oahu I saw a Informational sign that stated that The Earth has 13 different climates, and eleven of them could be found in Hawaii and a map showing 8 of them within walking distance of the sign.

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    112. Re:Local impact = climate change? by budgenator · · Score: 1

      A Human body is 90% non-Human cells; we're not just an organism, we're an eco-system!

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    113. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      You're right about the error in math, I mistyped 365 as 265 in the calculator so it's 456GW of power instead of 628GW that is needed. However 992655 wind turbine is still an enormous amount. And I should have been clearer, wind power is silly at the scalr of a country like the US for the scale of energy output we use nowadays. Of course, it's perfectly fine for isolated islands of for producing the energy consumption needed hundred of years ago. As for efficiency getting better, let's hope so because the current generation we are installing today is still crap.

    114. Re:Local impact = climate change? by Tyndmyr · · Score: 3, Informative

      Every construction has some local effect. Most cities have warmer temperatures by several degrees than they would without structures. This is...really not that big of a deal. I would not call it climate change, more of a minor local weather change. Planting a line of trees would also result in minor local weather changes, possibly on a much larger scale. This isn't really a problem, though, and linking it to the larger climate change issue is unfortunate.

      --
      Support more choices in goverment-Vote 3rd party.
    115. Re:Local impact = climate change? by Tyndmyr · · Score: 1

      I suspect that a 1 degree change is a lot more minor than a desert to a swamp. If a 1 degree change irrevocably kills the local climate...guess what, that ecosystem was doomed anyway. The world isn't getting cooler.

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      Support more choices in goverment-Vote 3rd party.
    116. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      This has nothing to do with climate change, which is a change to the underlying system.

      By that logic, there is no such thing as climate change. CO2 emissions do not change the underlying system, and were they do stop completely, the system would, in time, revert/adjust. By your logic, climate change can't exist unless thermodynamic laws (or whatever) are changed.

      The difference here is that instead of reflecting heat back to earth the wind farms doesn't add or remove warmth, but change the distribution. For every so slightly hotter place there is a volume which compensates for that. If you mix hot water into cold one it has two perspectives: The cold one gets warmer or the hot water gets colder. And still the enrgy is preserved.

    117. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Wind will never be a primary source of energy. It'll be some form of nuclear.

    118. Re:Local impact = climate change? by houghi · · Score: 1

      Colibris are big. You can go smaller and use butterflies. Instead of climate change, we could it it the butterfly effect.

      --
      Don't fight for your country, if your country does not fight for you.
    119. Re:Local impact = climate change? by styrotech · · Score: 1

      Yeah that could be a problem with wind farms that aren't in predominately windy areas... wait a sec

    120. Re:Local impact = climate change? by Firethorn · · Score: 1

      By 'Mark 1' I simply meant 'first generation'. I said 'wind farm' because you can literally go back to the time of the Roman Empire to get wind mills used for things like milling grain or pumping water. Individual turbines have been known for a long time. Heck, History of wind power features a wind powered generator from 1888. Going by that picture, you're still looking at over 4 people high to the bottom of the blades.

      Age wise, the earliest I'd expect to see serious wind farms would be the '80s. As for the height, do you mean in total or just to the bottom of the blades? Depending on how close you were, they can mess with perspective(IE your estimates might not be accurate).

      Hmmm... Here's a chart of NASA/DOE Prototypes.

      The smallest, a 200kW model, has a rotor height of 30m and a blade diameter of 38.1. That would put the bottom of the blade at 11 meters up. 2-3 people high, guessing at 2M per 'person', would be 4-6M high for the bottom of the blade. I'm assuming that any lower than that would be considered unsafe for people, so I doubt the height of the turbines you saw were really only 2-3 people high in total, the blades could easily hit somebody that low.

      The possibility that they were there for some reason other than electricity generation still exists, of course. All the stuff up above amounts to 'not enough data!'.

      The prospect of turbines warming the ground up a degree, even in exchange for a slight overall cooling effect, could be very useful for farms further north - which 'waste' a good part of the spring waiting for the ground to thaw enough for plants to grow. A single degree farenheight could mean an extra 3-7 days of growing season where I'm at, during a period of 16-18 hours of sunlight. 'Climate Change' is NOT always bad.

      --
      I don't read AC A human right
    121. Re:Local impact = climate change? by krotkruton · · Score: 1

      Haha, I didn't have the volume on when I found that, but somebody should call the RIAA.

    122. Re:Local impact = climate change? by Chris+Burke · · Score: 1

      Unless your food is sequestered carbon like COAL, your breathing is part of the normal carbon cycle.

      You mean I'm not supposed to eat the charcoal briquettes?

      --

      The enemies of Democracy are
    123. Re:Local impact = climate change? by Chris+Burke · · Score: 1

      Where "anyone" is the Pretentiously Anti-Intellectual.

      Yes, you're so special for not understanding the word "conflate" and looking down on people who do.

      --

      The enemies of Democracy are
    124. Re:Local impact = climate change? by Chris+Burke · · Score: 1

      First, as the AC correctly surmised, the argument was about 'can' and 'could'.

      And then you brought in "will", proposing it as the future-tense of "can" which was wrong. The future tense is "could".

      And then you provide an example of correctly replacing "will" with "going to" in contrast to "can", amply demonstrating that "will" is not the future sense of "can" because otherwise that sentence would make no sense. As in this sentence: "Just because you can have sex with a man, doesn't mean you could". Actually yes it does. That's exactly what "could" means.

      --

      The enemies of Democracy are
    125. Re:Local impact = climate change? by Khyber · · Score: 1

      You're assuming that water won't continue eroding the rock over those thousands of years, and just keep it open, or eventually make an under-rock tunnel, and the Mediterranean Sea becomes a tidal lake.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    126. Re:Local impact = climate change? by cynyr · · Score: 1

      I have yet to see a forest clear-cut for a wind farm. I see lots of farmland "clear-cut" for wind farms, and I've seen forests cut for timber and farming...

      --
      All of the above was encrypted with a Quad ROT-13 method. Unauthorized decryption is in violation of the DMCA.
    127. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      'sucking energy out of the wind'. It gets pumped back in again via the heat produced that is generated with the electronics that use this energy ...

    128. Re:Local impact = climate change? by ghostdoc · · Score: 1

      Thought I'd give you a while to think about this for more than 5 minutes and realise your mistake...but obviously not...

      A system of interoperating parts is not the same thing as a single one of those parts. So a hive is not the same as a bee.

      A human body is not the same as a human cell.

      A 'global weather system' is not the same as a climate.

      So, yeah, when you manage to make it out of 7th grade let us know...

      --
      Business/App ideas are like arseholes: everyone's got one, they're mostly shit, but very rarely they contain a diamond
    129. Re:Local impact = climate change? by jkflying · · Score: 1

      Sigh.

      Ever notice how in a sentence with 'could', there is that hanging 'if'?

      Eg. I could mow the lawn (if you pay me).

      'Can' and 'will' contract to 'would' which is future conditional. Note, there is still an 'if'.

      Eg. People would understand grammar (if they paid attention).

      That's because could is the conditional. Not the future.

      --
      Help I am stuck in a signature factory!
    130. Re:Local impact = climate change? by jkflying · · Score: 1

      And as I accurately stated, 'can' and 'could' are merely different modes of the same word.

      Yep. 'Could' is conditional, 'can' is present. 'Could' is not future, like you originally asserted.

      There are several ways of putting something in the future tense. The use of 'could' is one of them, but it puts it in the conditional future. Not the future. There is a difference.

      Look it up in a dictionary, not some random website with the word "English" in the name.

      I take it you haven't heard of the 'simple future' tense then? How about the 'continuous future' tense? 'Conditional future'? Trust me, they've all been around for a while. This isn't the only website that mentions it. In fact, you'll even find it in dictionaries. Impressive, huh? (Hint: dictionaries aren't somehow better than structured lessons on grammar, particularly when it comes to arguing finer points of grammar.)

      Just because you have the ability to have sex with a man, doesn't mean you are compelled to

      'Having the ability to' is the definition for 'can', I have not problem with that. However, 'being compelled to' is not a definition for 'will'. Moreover, this sentence can't be used to prove anything in the way you have, because of the "doesn't" (which by the way, is a contraction of "does not", since that seems so novel to you). The sentence could just as easily be:
      Just because you can have sex with a man, doesn't mean you are a flying space alien from Mars.
      The "doesn't" just means that what is in the second clause isn't true, and does mean that nothing from the first clause even applies to the second clause. So let's drop the "doesn't".
      How about:
      "Because you have the ability to have sex with a man, you could, if you so wished." See? Use of the conditional. 'Could' is not future, but conditional.

      Your 'compelled to' argument is completely besides the point, which was you asserting that 'could' is future, not conditional. However, if you would like an explanation on that one too, just give me a yell.

      --
      Help I am stuck in a signature factory!
    131. Re:Local impact = climate change? by jkflying · · Score: 1

      Sorry for typo.

      'Could' and 'will' contract to 'would' which is future conditional. Note, there is still an 'if'.

      --
      Help I am stuck in a signature factory!
    132. Re:Local impact = climate change? by skatull · · Score: 0

      How soon before we see the headline "Geothermal energy production prematurely cooling earths core"?

    133. Re:Local impact = climate change? by tom17 · · Score: 1

      Here you go :)

      http://slashdot.org/comments.pl?sid=2819815&cid=39846493

      Thanks for the info though!

    134. Re:Local impact = climate change? by Anonymous Coward · · Score: 0

      Who wrote that headline and how can we make him stop writing new ones.

      Climate is regional, so it makes sense.

    135. Re:Local impact = climate change? by HArchH · · Score: 1

      Wind farms might have a local climate effect. Or they might not. Solar panels might too, since they take energy from where they sit and put it on the grid to be converted into heat somewhere else. If I build a campfire it might have an effect on the climate too. And if I drive my car. Or if I watch TV. Or if I use my computer.

      By the way, is that impact positive or negative? Or is any impact objectionable? Because I like to have an impact on my environment. It's one of the ways that I survive, and why I elect to live in a solid dwelling.

      Don't people get tired of hearing all these ridiculous climate claims?

      Maybe first we can figure out if wind turbines have a serious impact on flying critters (insects, birds, bats, pterodactyls) and then we can decide to tear them all down for that reason before we argue about (as 1u3hr says) hockey sticks.

    136. Re:Local impact = climate change? by Chris+Burke · · Score: 1

      A 'global weather system' is not the same as a climate.

      Yes, that's the global climate. And there are local climates at various scales. Whatever "climates" you think comprise the "global weather system" can themselves be decomposed into smaller climates of which the larger climate is just an average -- ergo what you called climate in the first place are actually not but rather "regional weather systems"?. No. They are also climates. It's all about the scale at which you are looking. If we're talking about the climate parameters of the earth, then that's the global climate.

      So, yeah, when you manage to make it out of 7th grade let us know...

      Oh yeah, I'm so sure it's in your advanced education where you learned that there's no such thing as "global climate", and not an assumption you just made to try to be pedantic. I guess the climatologists NASA, NOAA, and IPCC never got out of 7th grade...

      --

      The enemies of Democracy are
    137. Re:Local impact = climate change? by Firethorn · · Score: 1

      Interesting... Learn something every day.

      --
      I don't read AC A human right
    138. Re:Local impact = climate change? by lgw · · Score: 1

      I'm not assuming anything, I'm taking the geologists who study this stuff at their word, but it does seem reasonable. Apparantly if the Straight closed the Med would dry up really quickly, just a few hundred years. I guess it evaporates far faster than it fills from local drainage.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    139. Re:Local impact = climate change? by Muros · · Score: 1

      How soon before we see the headline "Geothermal energy production prematurely cooling earths core"?

      I don't really care to be honest. When the earth's core cools, it will primarily be because it has run out of fissile materials in densities capable of sustaining nuclear reactions. When that happens, the atmosphere being stripped away by the solar wind due to the lack of a buffering global magnetic field will be slightly more worrisome than a drop in temperature.

  2. No way! by Anonymous Coward · · Score: 5, Funny

    We must stop this reliance on wind energy, which is causing such harm to the environment! Increased usage of this harmful wind pollution will inevitably result in a global climate catastrophe within the next century! We must start finding alternative fuels NOW!

    1. Re:No way! by Anonymous Coward · · Score: 0

      NOW!!!

    2. Re:No way! by Anonymous Coward · · Score: 0

      I wanted to mod this "Funny", but it got labeled "informative"...

    3. Re:No way! by Anonymous Coward · · Score: 0

      We must stop this reliance on wind energy, which is causing such harm to the environment! Increased usage of this harmful wind pollution will inevitably result in a global climate catastrophe within the next century! We must start finding alternative fuels NOW!

      We could always burn CowboyNeal or CmdrTaco...

    4. Re:No way! by Anonymous Coward · · Score: 0

      Can we go back to using whale blubber? This all started when we stopped hunting whales for energy.

    5. Re:No way! by rrohbeck · · Score: 1

      Signed, the Koch brothers.

  3. Done to death already by IWannaBeAnAC · · Score: 3, Interesting

    This has been done to death already elsewhere. The bottom line is that increasing the surface temperature (at the expense of cooling the air) increases the thermal radiation into space and therefore has the overall bottom line effect of (very slightly) cooling the earth.

    1. Re:Done to death already by Anonymous Coward · · Score: 0

      Solar power also cools the earth (technically wind power is Solar too). The Sun only provides so much energy and that energy is what make the Earth run. You suck enough of it away and it will be as bad as anything else.

      In other words, at some point we will reach a limit where our Sun can not support the amount of humans on the planet. We need to get more efficient and invest in space exploration.

    2. Re:Done to death already by L4t3r4lu5 · · Score: 1

      This has ...The bottom line... effect of ... cooling the earth.

      Global warming solved. Got it.

      --
      Finally had enough. Come see us over at https://soylentnews.org/
    3. Re:Done to death already by Anonymous Coward · · Score: 0

      duh, the bottom line is always that there is the conservation of energy law involved.

      you bring energy out of the wind, why people are expecting anything else that umbalance?

    4. Re:Done to death already by Anonymous Coward · · Score: 0, Insightful

      Solar power also cools the earth (technically wind power is Solar too). The Sun only provides so much energy and that energy is what make the Earth run. You suck enough of it away and it will be as bad as anything else.

      In other words, at some point we will reach a limit where our Sun can not support the amount of humans on the planet. We need to get more efficient and invest in space exploration.

      Space exploration will never be a solution to overpopulation on such a large planet. Why? Because the only possible explanation for packing 10+ billion people on this planet is ignorance and poverty.

      So the people who are able to afford space travel will not be the ones with a land availability issue.

    5. Re:Done to death already by VortexCortex · · Score: 5, Insightful

      The Sun only provides so much energy and that energy is what make the Earth run.

      Well, the Sun as well as the Moon's tidal forces which cause the Earth to flex by approx 30cm daily causing friction in the Earth while also massaging the crust to help relieve pressure.

      Well, that and the previous star(s) that blew up and who's energy is present in the matter and angular momentum preserved in the forming of our solar system.
      You could very well also argue that if we continue using energy at this rate, we'll also accelerate the Heat Death of the Universe.

    6. Re:Done to death already by Galestar · · Score: 2

      Solar power also cools the earth...

      So what you're saying is we need global warming to fix it? I'll just go drive my SUV around the block a couple times.

      --
      AccountKiller
    7. Re:Done to death already by Anonymous Coward · · Score: 0

      This has been done to death already elsewhere. The bottom line is that increasing the surface temperature (at the expense of cooling the air) increases the thermal radiation into space and therefore has the overall bottom line effect of (very slightly) cooling the earth.

      Wouldn't the effect depend on the # of windfarms, the cloud cover, etc? This statement is missing various qualifiers that are required to make it scientific.

    8. Re:Done to death already by sulimma · · Score: 1

      Solar power also cools the earth (technically wind power is Solar too). .

      Only if you store the electricity infinitely. Most of the electricity is converted to heat pretty quickly. The solar panel has a lower reflectivity as most materials so actually placing a solar panel might increase Earths temperature.

    9. Re:Done to death already by Anonymous Coward · · Score: 0

      Space exploration will never be a solution to overpopulation on such a large planet. Why? Because the only possible explanation for packing 10+ billion people on this planet is ignorance and poverty.

      /earth is 97% full. Please delete anyone you can.

    10. Re:Done to death already by Anomalyst · · Score: 1

      This has been done to death already elsewhere.

      Yet hre it is before us again.
      Nuke it from orbit, it's the only way to be sure.

      --
      There is no right to feel safe thru security vaudeville at the expense of everyone's freedom, privacy and tax money.
    11. Re:Done to death already by ChrisMaple · · Score: 1

      I feel tense. Where can I get one of these deep crust massages to help relieve pressure?

      --
      Contribute to civilization: ari.aynrand.org/donate
    12. Re:Done to death already by ceoyoyo · · Score: 1

      You can't count both tidal forces and angular momentum in the solar system. Tidal forces are due to that angular momentum.

  4. Re:could this explain by SJHillman · · Score: 1

    Do you have a lot of very large turbine farms in your area? Then possibly, but unlikely.

  5. Hm, we better stick to coal by Anonymous Coward · · Score: 0

    think of the environment.

  6. I've never understood... by ihop0 · · Score: 1

    I've never understood why this issue is never discussed. You're taking energy out of the system, and wind from people downstream. Local weather patterns aren't closed systems.

    1. Re:I've never understood... by s_p_oneil · · Score: 2, Insightful

      Because it's mostly BS. Think about it. What do you think planting trees does to the wind? What about cutting trees down? We've cut enough trees down over the past 200 years that we could probably put a billion wind turbines up and not get back to what was "natural" 200 years ago.

      As far as the forces involved, imagine a kid dabbling his toes in a river. Does he slow the river down or change its course? No. What about 100 kids? Still no. The forces pushing the river are so much larger and stronger than anything toes can interrupt. Sure a tiny bit of the river slows down as the water swirls and eddies around the toes, but as gravity continues to pull it downstream, it speeds right back up to the speed it was going before. If you're not actually removing water (e.g. for a city water supply) or blocking enough to form a lake (e.g. a dam), you're not going to have a noticeable impact downstream.

    2. Re:I've never understood... by Anonymous Coward · · Score: 0

      That was always my thought on wind generated power as well, but just like we use to do with rivers, we don't care about people further down the line.

    3. Re:I've never understood... by Anonymous Coward · · Score: 0

      Actually, speaking of trees...we've got more planted now than we used to have, at least in the US.

      And...FDR implemented the Great Plains Shelterbelt. Almost 20,000 miles of windbreaks.

    4. Re:I've never understood... by Anonymous Coward · · Score: 1

      You missed one key force that DOES make a significant impact, and more directly relates to the systems involved:

      When ONE kid dips his toe in the river, the height of the water changes (water level rises upstream and drops downstream) with the additional mass the foreign body presents. While this takes place, the temperature of the system drops, as more energy is required to balance this effect then previous. Though you're right, the effect of one (or even one hundred) toes is fairly insignificant, the point of the article is that every system has a tipping point.

      In the case of wind, (I've been trying to complete research on solar photo voltaic cell's effect on similar macroscopic environmental repercussions on and off for the last five years) if you put up enough towers, you MAY not stop the wind itself, but you WILL produce effects that few bother to consider in the long term. Temperature drop being one of the most apparent, though seemingly unrelated things like deforestation (due to the potentially adverse effects of modifying weather patterns that local trees may depend on for reproductive purposes) or even increased plant growth (as the changed environment may in fact INCREASE the reproductive rates of trees that have been stagnant for years)

      Etc.

      tl:dr
      Changing the environment in the macro world changes things.

    5. Re:I've never understood... by wisnoskij · · Score: 1

      Because humans have never been able to comprehend things the size of the earth. Our history is littered with "there is so much of this it does not matter what we do with it, we will never effect it" thinking.

      If you or someone else had raised this idea on a previous /. article about wind turbines, ocean wave generators, geothermal, ect. you would have 5 guys responding with that exact same line.

      --
      Troll is not a replacement for I disagree.
    6. Re:I've never understood... by lightknight · · Score: 4, Informative

      You're forgetting how few people actually understand thermodynamics.

      I imagine most people (and politicians) think wind / solar / tidal energy = magically free energy, with an emphasis on the word magic.

      --
      I am John Hurt.
    7. Re:I've never understood... by wisnoskij · · Score: 1

      Or course trees block wind and change climate, everyone knows this.
      That does not change the fact the wind farms do this as well.

      And of course a single toe slows a river.

      --
      Troll is not a replacement for I disagree.
    8. Re:I've never understood... by Ksevio · · Score: 5, Funny

      A very concerned bum asked me about that one time while I was walking around with a hard hat on.

      I told him "No, solar panels won't suck up all the sun, they just used the wasted sunlight, so there will still be enough for you"

    9. Re:I've never understood... by Yvan256 · · Score: 1

      Here's a summary of your post:

      Imagine a beowulf cluster of butterfly effect!

    10. Re:I've never understood... by ghostdoc · · Score: 2

      damn I never have mod points when I need them. +1 Funny :)

      --
      Business/App ideas are like arseholes: everyone's got one, they're mostly shit, but very rarely they contain a diamond
    11. Re:I've never understood... by mark-t · · Score: 4, Informative

      Wind farms *MIGHT* perceptably slow down air near the surface of the earth only... within a hundred meters or so.... in a not entirely dissimilar way to how buildings can shelter people from wind.

      But you could cover the entire planet with wind farms, and that would have negligible impact on the earth's climate because 100 meters is positively puny compared to the total size of the earth's atmosphere. It would impact even less than buildings because buildings actually block the air, where turbines let it all through. Further, the cross sectional area of a blade that is 10 meters long is perhaps at most about 10 square meters, while the total swept area of a blade that long is over 300 square meters. Allowing for the fact that there are 3 blades per turbine, the turbine is only affecting (at most) 10% of the air that is passing through any given turbine. And again, it's not actually stopping it... it's passing right through. Coupled with the absolutely enormous mass of air above the turbines that is even more negligibly affected by the presence of stuff on the ground, the net impact on climate stands to be somewhere near nil.

      One might as well suggest that harnessing the energy from tides might perceptibly impact the orbit of the moon...

    12. Re:I've never understood... by IAmR007 · · Score: 1

      Also, natural forests are a lot more wind resistant than farmed ones where the trees are all roughly the same height. Given how few forests are old growth these days, wind farms may help to balance out our logging activities (globally, ignoring location).

    13. Re:I've never understood... by Anonymous Coward · · Score: 0
    14. Re:I've never understood... by Anonymous Coward · · Score: 0

      It's a point raised by people who have an issue with the concept of AGW. It's an idea I've heard echoed, in real life, by people who I know from experience to be somewhat dim. It's somewhat analogous to the micro/macro evolution 'problem', and it's an argument that could have been equally applied to the Okie Dust Bowl problem. It's wrong.

    15. Re:I've never understood... by VoidCrow · · Score: 1

      Or indeed, one could indulge in a flight of fancy and concoct a story as outrageous as this...

      We're well into the EAFE zone, right now.

    16. Re:I've never understood... by Culture20 · · Score: 1

      Because humans have never been able to comprehend things the size of the earth. Our history is littered with "there is so much of this it does not matter what we do with it, we will never effect it" thinking. If you or someone else had raised this idea on a previous /. article about wind turbines, ocean wave generators, geothermal, ect. you would have 5 guys responding with that exact same line.

      That's okay; there's so much /. that they'd never effect it.

    17. Re:I've never understood... by Hatta · · Score: 1

      If you're not actually removing water (e.g. for a city water supply) or blocking enough to form a lake (e.g. a dam), you're not going to have a noticeable impact downstream.

      Bullshit. You ever see how a river creates oxbows? Flowing water is a chaotic system, and chaotic systems express sensitive dependence on initial conditions. A small change in a river bed can increase local erosion, which can change the flow characteristics in the local area, which can cause more erosion, amplifying the effects. Over the course of decades, a small obstacle could very well affect the way the river oxbows.

      --
      Give me Classic Slashdot or give me death!
    18. Re:I've never understood... by s_p_oneil · · Score: 1

      "Or course trees block wind and change climate, everyone knows this. That does not change the fact the wind farms do this as well."

      Actually, the wind-blocking effect of trees affects local weather patterns, NOT climate. Climate change from trees comes from converting CO2 to O2 (something a wind turbine doesn't do) and releasing water vapor into the air that turn into clouds (something a wind turbine also doesn't do). Also, I wasn't arguing that wind farms would have zero impact. I was arguing that the impact would most likely be beneficial instead of harmful. Most weather scientists consider the wind-blocking effect of trees to be a good thing because they slow down local storm winds and interfere with tornado formation.

      "And of course a single toe slows a river."

      Actually, it doesn't change the speed at all. You have to take into account terminal velocity. Imagine an object falling from a high altitude. It accelerates toward the ground until wind resistance balances out the force of gravity, giving it a constant speed. Now imagine that object passing through something like a wind turbine that slows it down at one specific point in its fall (or thousands of different points, it still doesn't matter). As soon as that object gets past the obstacle(s) slowing it down, gravity speeds it right back up to its terminal velocity. So while the interference does cause it to hit the ground a bit later than it normally would have, that object still hits the ground at the same speed and with the same amount of force.

      Now imagine a constant stream of objects falling and hitting the ground. The first time you insert an obstacle to the path, there would be a "bubble" (or gap, or wave, or however you want to visualize it) in the stream of objects hitting the ground. That one temporary bubble would be the only difference noticeable on the ground. Once that bubble passed by, the stream of objects hitting the ground would continue on exactly as it had before at the exact same speed.

      The same concept applies to toes in a river (where the riverbed provides the resistance to control the water speed). You're not removing energy from the river when you dip your toes in. You're removing it from the riverbed. I suppose you could argue that you're slowing down erosion a tiny bit by sticking your toes in the river, but I doubt anyone would really worry much about that. ;-)

    19. Re:I've never understood... by wisnoskij · · Score: 1

      "Actually, it doesn't change the speed at all."

      If you take energy out of a closed system then that system HAS less energy, end of story.
      If you convert wind energy to electricity then that wind energy is gone from the climate.

      --
      Troll is not a replacement for I disagree.
    20. Re:I've never understood... by s_p_oneil · · Score: 1

      You're right, I forgot about erosion. I remembered it later in a reply to another post. When you consider the net energy of a river, the gravity is constantly pulling the water downward and the riverbed is constantly pushing back on it (limiting the speed). When you dabble your toes in the water, the net result should be to take some of the energy away from the riverbed (as your toes end up helping the riverbed limit the speed as opposed to actually slowing it down). In theory that should slow erosion down a tiny bit, as your toes are taking some of the beating the riverbed normally takes, but as you pointed out, it is a chaotic system.

      However, if you go back to the original argument (that of windmills), wind erosion takes MUCH longer than water erosion, and even water erosion can take a VERY long time. So while your argument is correct, I don't think it invalidates the point I was trying to make. I can't imagine anyone being worried about windmills impacting wind erosion.

    21. Re:I've never understood... by sootman · · Score: 1

      We installed a skylight at home, and I told my wife "Sure, it saves energy during the day, but at night it's just gonna let more dark in!"

      --
      Dear Slashdot: next time you want to mess with the site, add a rich-text editor for comments.
    22. Re:I've never understood... by Hatta · · Score: 1

      One might as well suggest that harnessing the energy from tides might perceptibly impact the orbit of the moon...

      The tides do indeed exert a measurable effect on the moon's orbit.

      --
      Give me Classic Slashdot or give me death!
    23. Re:I've never understood... by mark-t · · Score: 1

      The tides do, yes... but harnessing energy from them does not... the net percentage of energy that we could ever even theoretically hope to harvest from the system compared to the amount of energy actually within it is so tiny as to be considered inconsequential. ..

    24. Re:I've never understood... by s_p_oneil · · Score: 1

      "If you take energy out of a closed system then that system HAS less energy, end of story."
      "If you convert wind energy to electricity then that wind energy is gone from the climate."

      That argument would make sense except for a few key things you missed:

      1) I hate to be the one to break it to you, but the Earth is NOT a closed system. Massive amounts of energy are constantly transmitted to our planet from the sun (primarily in the form of visible light). That energy is converted to infrared light and transmitted back out into space, never to be seen again. If you generate an enormous amount of heat on the surface (let's take nuclear power plants as an example), it doesn't warm the planet because the planet is NOT a closed system. The heat escapes into space very quickly. The primary concern about global warming has to do with atmospheric changes that reflect infrared light back to the surface without reflecting visible light. It has nothing to do with how much "energy" is in the system at any given time, but with how quickly energy enters and exits the system.

      2) Energy isn't created or destroyed in this case. That energy "taken" by a windmill isn't actually removed from the system. It's still here. When the energy in that electricity gets used, it generates heat, which puts that energy back into the system.

      3) If windmills don't remove that energy, the next tree, hill, or mountain will. The surface of the Earth (even the waves on the ocean) are constantly slowing the wind down. The friction generates a small amount of heat, most of which gets sent back into space as infrared light. Once again, it would be fairly easy to argue that adding windmills simply decreases wind erosion. It's an over-simplification, but it's not necessarily wrong.

    25. Re:I've never understood... by jbengt · · Score: 1

      Further, the cross sectional area of a blade that is 10 meters long is perhaps at most about 10 square meters, while the total swept area of a blade that long is over 300 square meters. Allowing for the fact that there are 3 blades per turbine, the turbine is only affecting (at most) 10% of the air that is passing through any given turbine.

      No, the turbine will appreciably affect more than 100% of the air that is passing through the area of the blade sweep.

    26. Re:I've never understood... by ChrisMaple · · Score: 1

      To have a "tipping point", a system must be unstable. Not all systems are unstable, not all systems have tipping points.

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    27. Re:I've never understood... by formfeed · · Score: 1

      Because it's mostly BS.

      Yes, but quotable BS: Study finds, wind energy could harm ..
      If we'd cover the globe in windmills, it would slow down the [surface] wind -just as badly as these evil trees. And covering the entire earth with solar panels would make the whole earth shiny. Building a large hydro dam around the Midwest would cause millions of people to drown.

      The only real alternative is coal. Not only does it support local jobs, it also emits pure plant food.

    28. Re:I've never understood... by mark-t · · Score: 1

      Wouldn't matter even if it did... again, our atmosphere is many km thick, and the bulk of what affects climate takes place so far above the height of the wind farm blades that it would not hope to be appreciably affected. The most that might be affected are wind patterns near the ground, which is not what drives climate, local or otherwise.

    29. Re:I've never understood... by bolthole · · Score: 1

      That would be very comforting for people living in the sky. But for local yokels like me, who live on the ground, I imagine that changes to wind patterns "near the group", are still quite important, reguardless of whether the sky people are doing okay.

    30. Re:I've never understood... by wisnoskij · · Score: 1

      But it is the placement that matters.
      Surly you are not denying that mountains create deserts, aka something slowing down the wind effects the local climate.
      If that is a positive, negative, or neutral effect would depend on the situation and the perspective.

      but if, for example, they just diverted 1% of the rainfall from falling on a swath of land then that has an noticeable effect.

      --
      Troll is not a replacement for I disagree.
    31. Re:I've never understood... by s_p_oneil · · Score: 1

      I expected this argument to come back right away, but it took a while. ;-)

      When it comes to mountains, it's more an issue of size than of placement. If you go back to the river comparison, a mountain range is like a dam across a river. With a dam, you end up allowing MUCH less water past that point, which backs up the river to form a lake. Water escapes from the lake more slowly by evaporation, seeping into the ground, etc. This effectively removes water from the downstream side of the river just as much as crop irrigation would, and obviously that would have a huge impact.

      Mountain ranges can't act like a dam for air (they can't stop the air from going over or around), but they can act like a dam for water vapor. Moist air passing over a mountain is forced to a higher altitude where it condenses it into clouds. There it gets squeezed and wrung out like a rag, and falls back as precipitation before it has a chance to go over or around the mountains. If you think about it, while the really large Rocky mountains on the west coast create deserts, the Appalachian mountains on the east coast are too small. The Appalachians are more like large boulders sitting in a river than a full dam. I don't know about you, but I've never seen a windmill anywhere close to the size of even one mountain in the Rockies (or even the Appalachians). In fact, I doubt all the windmills in the world put together would come close to the mass of even one small mountain.

      Having said that, if they started building windmills the size of mountains, I would be more worried about them.

    32. Re:I've never understood... by mark-t · · Score: 1

      No, actually... it is not that important to the net effect of wind. Even near the ground, it doesn't matter that much because the air near the ground is constantly intermixing with the air mass above it. The overall effect of such small man-made structures on wind any distance from them is invariably completely negligible. If you try to project a scale at which it would actually have a discernible impact, you end up going into the realm of the purely hypothetical, and talking about things that are either so far beyond today's engineering capabilities to even hope to actually construct before the technology itself could be rendered obsolete by other advances, or else simply physically impossible on account of ignoring some physical constraints which invariably have to apply.

    33. Re:I've never understood... by Anonymous Coward · · Score: 0

      One might as well suggest that harnessing the energy from tides might perceptibly impact the orbit of the moon...

      Fuck suggesting it. Anyone sufficiently educated or insightful can calculate it.

      Just tell me (1) how much energy are you harnessing and (2) the precision with which you can measure the moon's orbit.

      Science. It works, bitch!

    34. Re:I've never understood... by Anonymous Coward · · Score: 0

      Further, the cross sectional area of a blade that is 10 meters long is perhaps at most about 10 square meters, while the total swept area of a blade that long is over 300 square meters. Allowing for the fact that there are 3 blades per turbine, the turbine is only affecting (at most) 10% of the air that is passing through any given turbine.

      Air doesn't work like that. It's a gas, not a stream of solid pellets.

      1) Open system means pressure is equal on the both sides of the turbine
      2) Conservation of mass means the mass flow rate of air entering the turbine equals the mass flow rate of air exiting the turbine
      3) PV = nRT, ergo the volumetric flow of air entering the turbine equals the volumetric flow of air exiting the turbine
      4) Energy extraction means the velocity of air entering the turbine is greater than the velocity of air exiting the turbine
      5) A velocity drop with constant volumetric flow means the wake diameter of air exiting the turbine is larger than the turbine diameter.

      Wind turbines affect LOTS of air. That's why they work. That's why you can build 500MW farms in windy areas. You can't look at them and think "Oh, they are so frail and wispy looking, they must barely do anything".

      The best way to put things into perspective is to compare the power involved. Energy doesn't lie. A 500 MW farm has the equivalent local impact of six 747s running their engines at full takeoff power nonstop.

  7. Of course they can. by matthewmacleod · · Score: 5, Insightful

    Modifying wind patterns will very obviously have an effect on local climate. Local is the key word - these guys are talking about and increase of under one degree, directly above those wind farms, and it seems likely that this is caused by the small amounts of turbulence generated by the turbines.

    Now, if evidence emerges that this is harmful in some way, then we should of course evaluate that and make sure we understand the effects. However, I think stating "Wind Farms Can Cause Climate Change" is clearly intended to sensationalise this research and attract page views - especially given The Telegraph's well-known rabid-anti-environmentalism (they're especially anti-wind-turbine.)

    1. Re:Of course they can. by Rakishi · · Score: 1

      So there's going to be a wind farm on every single square mile of land? Including the ocean?

      No? Then you're not going to have a global change of one degree.

    2. Re:Of course they can. by ghostdoc · · Score: 1

      So there's going to be a wind farm on every single square mile of land? Including the ocean?

      um, well...yes...eventually.

      Our demand for energy is still rising, we're progressively banning all other forms of energy generation for not being 'green' enough. And wind generation is very very inefficient in terms of land use.

      So unless we switch to another form of power generation before then...yes

      --
      Business/App ideas are like arseholes: everyone's got one, they're mostly shit, but very rarely they contain a diamond
    3. Re:Of course they can. by jkflying · · Score: 1

      Ad hominem. *clap clap* Aren't you the clever AC?
      Next.

      --
      Help I am stuck in a signature factory!
    4. Re:Of course they can. by Rakishi · · Score: 1

      First of all, it's downright impossible to do what I described since wind is not uniform over the whole planet.

      Second of all, that's a straw man argument, there's plenty of other source of green energy.

    5. Re:Of course they can. by ghostdoc · · Score: 1

      Indeed, but your argument was a straw man too. You don't need to cover the planet in wind farms for it to affect the climate.

      and the scalability of green energy systems is a concern.

      Eventually we're going to have to deal with demand and stop breeding so much.

      --
      Business/App ideas are like arseholes: everyone's got one, they're mostly shit, but very rarely they contain a diamond
    6. Re:Of course they can. by Rakishi · · Score: 1

      Indeed, but your argument was a straw man too. You don't need to cover the planet in wind farms for it to affect the climate.

      I replied to a post that said there was a local 1 degree change and extrapolated that into a global 1 degree change. I pointed out why that was idiotic. A global change of 0.01 degrees isn't particularly large or important. Our parking lots, highways and cities probably cause more than that.

      and the scalability of green energy systems is a concern.

      Which has nothing to do with the topic and in fact is a reason why this topic is a non-issue. That was my point. We physically can't scale wind power enough to cause global temperature changes.

      Eventually we're going to have to deal with demand and stop breeding so much.

      Go look at some population projections, population size is not projected to be be an issue.
      Go look at the energy use of first and third world nations then compare it to that population growth, that is the issue.

      Eventually we'll either move to more efficient uses of energy, go nuclear and/or invent fusion. It should be noted that energy usage cannot increase forever even with unlimited energy since at some point the waste heat alone would cook the planet (but we're not at that point yet) .

  8. RTFA before writing headline by gstrickler · · Score: 2, Informative

    From TFA:

    However Prof Zhou pointed out the most extreme changes were just at night and the overall changes may be smaller.

    Also, it is much smaller than the estimated change caused by other factors such as man made global warming.

    “Overall, the warming effect reported in this study is local and is small compared to the strong background year-to-year land surface temperature changes,” he added.
    ...
    “This makes sense, since at night the ground becomes much cooler than the air just a few hundred meters above the surface, and the wind farms generate gentle turbulence near the ground that causes these to mix together, thus the ground doesn't get quite as cool. This same strategy is commonly used by fruit growers (who fly helicopters over the orchards rather than windmills) to combat early morning frosts.”

    --
    make imaginary.friends COUNT=100 VISIBLE=false
  9. University of New York? by Anonymous Coward · · Score: 0

    What is the University of New York? Can they get NYU straight?

  10. Duh, removal of enegy from enviro affects enviro by RichMan · · Score: 5, Insightful

    Any removal of energy from the environment wlll affect the environment.

    Solar energy capture reduces ground heating. Hyrdo capture reduces errosion and soil redistribution. Wind capture reduces winds and associated head and moisture distribution. Wave energy capture reduces shore errosion and fine particlate distribution. Tide capture does really really small scale stuff to the earth-moon-sun relationship.

    You don't get anything for free. The question is what do we accept as side effects of the energy extraction.

  11. Robert Heinlein by fermion · · Score: 5, Interesting
    "There is no such thing as a free lunch"

    All rational people understand that entropy exists and is always increasing. The point is not that humans can have an impact on climate and environment, the question is can we do things to minimize the impact.

    For example, we replaced horse poop all over the city with leaded fuel exhaust. When we did not all live in cities, the horse poop was not so bad, but cars were better for cities. Then we realized that lead was not so good for us, so we took lead out. Then the exhaust was still not so good, so we made cars more efficient. These changes costs important people lots of money, so they were opposed by uncreative people with lots of money, but in the end we have more efficient transportation that do not leave piles of feces in the street.

    So I read this report the other day, and my question is still the same. Would these locations prefer a windmill farm or coal fired plant. I ask this question because ultimately we cannot continue to reap the benefit of electricity production and outsource the consequences. It is expensive to do so. The question is not that does the new tech cause problems, but are those problems less than the old tech. I think it is arguably so.

    --
    "She's a scientist and a lesbian. She's not going to let it slide." Orphan Black
    1. Re:Robert Heinlein by stomv · · Score: 3, Interesting

      It's not that I disagree, it's that I sure wish you had added that we noticed that horses were difficult and walking was slow, so we added mass transit, and then about 100 years later we noticed that no matter how little autos emit from their tailpipes, they are still not very welcome in cities because they take up too much space, slow down mass transit buses and street cars, and are far too dangerous to pedestrians and bicycles. Because of this, [some] cities in the past 20 years have actively worked to reduce the number of autos in the city, through a suite of tools including car-free streets or urban centers, reducing parking minimums in zoning and even replacing them with parking maximums, increasing the price of on-street parking while reducing it's quantity, increasing the availability and efficiency of mass transit and, more recently, bicycle sharing, and rethinking roadway infrastructure to improve the flow and safety for peds, cyclists, and mass transit users even if it degrades the efficiency for motor vehicles.

      Sorry, not entirely relevant but I couldn't resist!

    2. Re:Robert Heinlein by Yvan256 · · Score: 2

      "There is no such thing as a free lunch"

      Sure there is. You just have to get to the fridge at 11:55.

    3. Re:Robert Heinlein by FirstOne · · Score: 0

      "Would these locations prefer a windmill farm or coal fired plant. "

      Wind farms are very efficient, converting 85 to 93% of the wind energy directly to electricity. Now compare that to a conventional thermal power plant.

      The 60 to 65% waste Heat from 600MW(e) coal plant would be more enough to double the effective average solar flux (3 to 4kWh/m^2/day) over an area of 8 to 9 square kilometers. Note: Not including the indirect effects of CO2 and soot emissions, a doubling the effective solar flux is more than enough to transform the affected area into desert.

      If one were to spread out that excess waste energy to match a typical 1 to 2C AGW forcing(1W/m^2) (0.72C by this study). It would work out to an 1 watt thermal forcing over an area of 900 to 1,114 km^2.

      It should be obvious to all, that putting up some wind turbines is by far the most environmentally friendly solution to our energy needs.

    4. Re:Robert Heinlein by Prune · · Score: 1, Informative

      > Would these locations prefer a windmill farm or coal fired plant.

      Oh, wow. This is the most blatant example of a false dichotomy I have seen for days. There are many other options, all of them more practical. Note, especially, the human death rate per Terrawatt-hour of energy produced here: http://www-958.ibm.com/software/data/cognos/manyeyes/visualizations/deaths-per-twh-by-energy-sources and look at the bottom of the graph on the right (consistent with http://nextbigfuture.com/2011/03/deaths-per-twh-by-energy-source.html which has discussion attached to the numbers). This is a rate lower than even that of wind, but there's a more important reason that this method is much better than wind: it's the only alternative to coal that can meet all of the world's energy needs as developing world per-capita usage energy use explodes to match that of the developed nations. You can't cover every square mile of the planet with wind towers.

      --
      "Politicians and diapers must be changed often, and for the same reason."
    5. Re:Robert Heinlein by ThorGod · · Score: 1

      > Would these locations prefer a windmill farm or coal fired plant.

      Oh, wow. This is the most blatant example of a false dichotomy I have seen for days. There are many other options, all of them more practical.

      In the sense that there are other ways to generate electricity than wind and coal fired plants, I agree. There are other options, I can't say they're all more practical. Windmills are here, today, while we're still working on solar panels (in all its forms) and 'clean coal' doesn't even exist ('cleaner coal' isn't 'clean coal'). I think your best point is "[we] can't cover every square mile of the planet with wind towers". Right, so we should be working on ways to distribute energy, correct? This is kind of a false question. No one's expecting one energy source to be the replacement for coal/gas/oil. Oil currently solves the energy distribution problem by being readily convertible to energy: just burn it.

      --
      PS: I don't reply to ACs.
    6. Re:Robert Heinlein by Anonymous Coward · · Score: 0

      [we] can't cover every square mile of the planet with wind towers

      if we erect a 2.3 MW turbine on every square 10 miles of land all over the world, the total output of these things would be constant and more than the current need for energy.

    7. Re:Robert Heinlein by sjames · · Score: 1

      A friend of mine once brought a very "special" lunch to work to correct that line of thought in a coworker. There was NOTHING free about that lunch! :-)

    8. Re:Robert Heinlein by tool462 · · Score: 1

      I believe this perfectly captures what people mean by "externalities" when discussing business regulation.

    9. Re:Robert Heinlein by Anomalyst · · Score: 1

      There Aint No Such Thing As A free Lunch.
      Please step away from your grammar checker with your hands in the air and turn around slowly.
      Now take all the parts put them in a paper bag, run outside, swing the bag around your head and scream like a chicken.

      --
      There is no right to feel safe thru security vaudeville at the expense of everyone's freedom, privacy and tax money.
    10. Re:Robert Heinlein by ThatsMyNick · · Score: 1

      Note, especially, the human death rate per Terrawatt-hour of energy produced here: http://www-958.ibm.com/software/data/cognos/manyeyes/visualizations/deaths-per-twh-by-energy-sources and look at the bottom of the graph on the right (consistent with http://nextbigfuture.com/2011/03/deaths-per-twh-by-energy-source.html which has discussion attached to the numbers).

      Now redo the chart for deaths in the 5 mile radius around the power plant, and you will have your answer. Nuclear deaths are usually in the vicinity of the plant, and happen in bunches. Its like 9/11 and people are willing to accept an increase in the chances of cancer to avoid another 9/11.

    11. Re:Robert Heinlein by Prune · · Score: 1

      Do you know how many people died from nuclear power accidents due to the nuclear aspect of it (that is, radiation)? Let's take the worst nuclear power disaster of all time: Chernobyl. How many people died from Chernobyl? According to the World Health Organization, "As of mid-2005, however, fewer than 50 deaths had been directly attributed to radiation from the disaster, almost all being highly exposed rescue workers, many who died within months of the accident but others who died as late as 2004." Wow! A fucking 50 people died! Oh, the horrors! Go spread your ignorance elsewhere, troll. It's well established that even close to reactors, radiation levels are barely raised above the natural background level. You have far more to worry about from radon in your basement.

      --
      "Politicians and diapers must be changed often, and for the same reason."
    12. Re:Robert Heinlein by Prune · · Score: 1

      My point is, there are 7+ million tonnes of proven mineable uranium and a heck of a lot more thorium, which, coupled with breeder reactors (breeders being old tech, and thorium reactors proved in India now in commercial operation), is enough energy for a millenium even with continued population x per-capital energy use growth. Why killbirds/bats and fuck up the landscape with windmills, or destroy ecosystems with hydro?

      --
      "Politicians and diapers must be changed often, and for the same reason."
    13. Re:Robert Heinlein by ThatsMyNick · · Score: 1

      I thought my 9/11 comment would make it clear, that I was only commenting on the perception of the masses. I am all for nuclear power, in fact (just like I am all for abolishment of the millimeter scanner and the TSA).
       
      The point I made still stands though. The number of deaths in the 5 mile radius of a coal power plant would be less than your 50 Chernobyl deaths. The point is the local populus is more likely to be affected by a disaster in a nuclear plant than a coal power plant. Unless this can be changed, it will face opposition from NIMBY groups worldwide.

    14. Re:Robert Heinlein by Anonymous Coward · · Score: 0

      The mayonnaise did taste sort of queer.

    15. Re:Robert Heinlein by ThorGod · · Score: 1

      Why killbirds/bats and fuck up the landscape with windmills, or destroy ecosystems with hydro?

      Well, there's not really great evidence to completely negate the use of windmills and hydro. Meanwhile, there is GREAT evidence to not drill oil in the deep sea (and easily remembered): the Deep Horizon oil drill from 2 (?) years ago.

      The problem with nuclear is public sentiment. Oddly, despite all the horrible oil spills, there isn't nearly as much negative public sentiment toward oil. If you mention nuclear anything people freak. People freak about nuclear, in part, because politicians have used nuclear power as a political hockey puck for decades. (This is at least in the US.) To some extent, nuclear deserves the critical view it gets. (Because everything deserves a good, critical view when it comes to replacing oil.) But some of that criticism is pure over reaction. People still think nuclear plants can blow up like nuclear bombs, or worse. To add insult to injury, there are so many nuclear plants out there that are out of date and should be made more safe. (And partially because of political pressure, they can't be updated.) Don't forget that we need a way to store nuclear waste.

      Nuclear's a long ways from being portable, mind you. The entire US grid could change to nuclear power, and still we would rely on lithium or older/outdated batteries to transport that energy. I say there's a double problem to energy: creation and storage. Everyone loves to talk about sources of generating energy, but few talk about transporting it. I guarantee there's as much or more money in moving energy as there is in storing it (in the future).

      --
      PS: I don't reply to ACs.
    16. Re:Robert Heinlein by Uberbah · · Score: 1

      As of mid-2005, however, fewer than 50 deaths had been directly attributed to radiation from the disaster

      Bolded a word you might have skipped over. Because a woman getting breast cancer that wouldn't have, or a man dying of prostate cancer 20 years earlier than he would have without the radation aren't indirect deaths from radiation.

      And even if you are able to make the perfect reactor design, there are still the fatal flaws of human greed, corruption and hubris.

  12. Not just that! by aglider · · Score: 1

    They also extract energy from the athmosphere (I actually have no idea on how much).
    But in the end all depends on how many wind farms will be deployed.

    --
    Sent as ripples into the electromagnetic field. No single photon has been harmed in the process.
  13. wind farm vs forest? by Anonymous Coward · · Score: 0

    OK, clearly a wind farm can have SOME effect. Everything has SOME effect, even if it's just miniscule. However, how can the effects of a wind farm be any different than the effect of planting a forest (other than the windfarm can be constructed faster than it takes the forest to grow)?

  14. Cities, planes .... by RichMan · · Score: 1

    Cities cause local/regional climate change.
    Plane travel collectively has a continent wide impact on cloud cover.

    Face it, there are enough people that anything we do collectively has impact on the world.

    1. Re:Cities, planes .... by ghostdoc · · Score: 1

      Face it, there are enough people that anything we do collectively has impact on the world.

      as part of the biosphere of our planet, this is entirely natural.

      This is where the Gaia theory starts, that our atmosphere, climate included, is generated by the biosphere, by all us living things. To give the most dramatic example,l we changed it from an anaerobic atmosphere to an aerobic one.

      Changing our atmosphere, our world, our climate, is as natural as breathing.

      --
      Business/App ideas are like arseholes: everyone's got one, they're mostly shit, but very rarely they contain a diamond
  15. Don't trees do the same thing? by techsimian · · Score: 0

    Buildings, billboards, overpasses, fences, signs, telephone poles, radio masts, flag poles..anything that either obstructs or formerly-obstructed-but-was-removed has an effect on climate. Do we have a Chicken Little tag?

    1. Re:Don't trees do the same thing? by Yvan256 · · Score: 1

      But... you have to build bypasses!

    2. Re:Don't trees do the same thing? by techsimian · · Score: 0

      the planet is like the Winchester house...if we stop building we'll die. Don't listen to those Mega-city Two peaceniks...Long live Mega-city One!

  16. Trees by Nerdfest · · Score: 4, Insightful

    Wouldn't this really just be the same effect as an equivalent area covered by large trees? Yes, it could slightly alter the climate, but any physical environment change will.

    1. Re:Trees by drinkypoo · · Score: 2, Interesting

      Dingdingdingding! This has actually been discussed here on Slashdot to goddamn death. Every time there's a story about wind energy some asshole pops up to say "but if we put up enough windmills to get all our energy" (or whatever other fascetious argument) "then what effect will that have on the atmosphere?" Well, there used to be trees where we're putting the windmills, what did you think THEY did to the wind? There's clearly an excess of energy in the system of global weather, we're seeing the results now with new record highs and low being set all over the world, in many cases within just a few days of each other. Anyone who thinks that's normal, please, refrain from replying.

      We already know that covering the damned planet in windmills wouldn't be a problem, because it is supposed to be covered in trees.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    2. Re:Trees by Anonymous Coward · · Score: 0

      Windmills and trees are not comparable.

      Windmills extract much more energy for a given projected area - that is the entire point of these machines.

      Doubt this? Ask a pilot why props can feather....

    3. Re:Trees by drinkypoo · · Score: 2

      Windmills extract much more energy for a given projected area - that is the entire point of these machines.

      Trees don't "harvest" any energy, so perhaps you could make a statement that makes some kind of sense. They do, however, turn that energy into benefit; a tree whipped by the wind will become stronger. Trees turn wind energy into structural integrity, which we can make use of later.

      Regardless, the total surface area of the trees that would be in a place versus the windmills that would be in a place is much higher even if you count the rotor as a disc, let alone if you treat it as what it is.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    4. Re:Trees by dzfoo · · Score: 1

      Your argument falls apart by the fact that trees do a lot more to the environment than rob it of wind or energy. Plus, by being part of the natural state of the environment, they interact in much more complex ways in a feedback loop with the rest of the system.

      As opposed to a tree, a windmill sequesters the wind energy and transforms and transfers it outside the system. It also does not participate in beneficial gas exchanges, or provide food for other organisms within the system.

      Finally, a windmill most definitely does not have a lifespan dictated and controlled by the environment, that allows it to recycle and refresh the system.

              -dZ.

      --
      Carol vs. Ghost
      ...Can you save Christmas?
    5. Re:Trees by Anonymous Coward · · Score: 0

      "Well, there used to be trees where we're putting the windmills,"

      Not correct. There haven't been trees, at least within the last umpty tens of thousands of years across the Great Plains of the US. I also don't believe there have been any trees growing in the ocean off the US Eastern Seaboard.

    6. Re:Trees by archen · · Score: 1

      Not quite. Trees act as a drag on the passing atmosphere. The wind turbine effect mixes in air from higher up in the atmosphere. I guess that also depends on how large the trees are we're talking about, but it seems like wind turbines reach much farther up and affect the surrounding environment in a way that trees probably wouldn't. If this is the same thing as discussed on the BBC, this only happens during night hours when temperatures closer to the surface are lower than those higher up. There seems to be a lot of panicking as if wind turbines "generate heat", but all they're really doing is mixing existing warmer air. Not sure if that's good, bad, or no change though.

    7. Re:Trees by ceoyoyo · · Score: 1

      Trees don't turn wind energy into structural integrity. They might turn solar energy into structural integrity in response to wind.

      Trees turn wind energy into heat.

    8. Re:Trees by drinkypoo · · Score: 1

      Your argument falls apart by the fact that trees do a lot more to the environment than rob it of wind or energy.

      Congratulations! You have just proved you don't speak English! All of that is orthogonal to my argument! Go back, reread comment, do not reply again.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    9. Re:Trees by dzfoo · · Score: 1

      No, you are the one who can't seem to comprehend my response.

      You said,

      We already know that covering the damned planet in windmills wouldn't be a problem, because it is supposed to be covered in trees.

      That argument assumes that a windmill would serve as an exact replacement for a tree, as if surface area covered is the only factor that influences the environment.

      Your personal attacks and demands that I refrain from responding, do not magically make you know what you are talking about.

      But what else can one expect from a Slashdot discussion?

              dZ.

      --
      Carol vs. Ghost
      ...Can you save Christmas?
    10. Re:Trees by drinkypoo · · Score: 1

      That argument assumes that a windmill would serve as an exact replacement for a tree, as if surface area covered is the only factor that influences the environment.

      We're specifically talking about the effects of windmills slowing down wind. That's what the whole fucking story is about, and that's what this thread is about in particular. Read the whole thread, then fuck off.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    11. Re:Trees by badkarmadayaccount · · Score: 1

      Here is an idea - solar conentrators + oil-giving algae (50% oil in cell mass). Like a forest on steroids.

      --
      I know tobacco is bad for you, so I smoke weed with crack.
  17. No shit. by Anonymous Coward · · Score: 0

    You mean these HUGE things that absorb energy straight out of winds can change the weather? GET OUT... you're lying man, don't kid like that.

    Guess what else does that?
    Building skyscrapers, oh and growing large rows of trees. (equally bringing down either of those also does)
    Hell, just about anything large-scale does.

    So, this is quite literally a case of "you are damned if you do and damned if you don't". So it is pretty much a moot point, there is NO way of getting around it.
    Tall, large things will change weather whether we like it or not.

    The only thing we can reliably do is:
    build farms farther out at sea to steal energy out of ocean winds (still going to have a knock-on effect regardless)
    build large buildings in the negative, in other words, underground. (actually works out really well, but also has a knock-on effect with regards to IT COSTS A LOT)

    Concrete jungle or underground cities?
    Larger absorption or larger cost?
    Neither are better or worse. Well, I say that, larger cost is worse because most people won't give a damn about what happens after they are dead.

    1. Re:No shit. by Yvan256 · · Score: 1

      How about spinning skyscrapers?

      Birds can kill themselves by flying into skyscraper windows and can get killed by windmills. So a spinning skyscraper would literally be killing two birds with one stone!

  18. The hysteria from this will grow like crazy. by Anonymous Coward · · Score: 0

    It's like the butterfly flapping its wings in China causing a typhoon.

    Humans have always had an impact on the environment, and we've known it, though we've often been wrong about it, such as how "Rain follows the plow" so what's new here?

    Nothing.

    This is just somebody trying to be anti-green green.

  19. Yes, yes by Anonymous Coward · · Score: 0

    but does that mean temperature goes up, or down? Don't just stand milling around man, get to the point!

  20. Umm.... so do buildings... by frente69 · · Score: 5, Funny

    Anything that sticks out of the ground is going to have an impact on airflow and climate. We should demolish all buildings and trees and live underground. Lizard people figured this out centuries ago. That's why they live underground.

  21. Wind farm owners will ENGAGE in climate change... by Anonymous Coward · · Score: 0

    Industrial-scale wind farms will extract energy from the atmosphere in ways comparable (but initially invisible) to hydroelectric's impact on watersheds. As worrying, the owners of industrial-scale wind will have a very deep interest in weather modification (WM) tools to literally steer more wind their way.

    This is not beyond the realm of technical feasibility, and with industrial wind and industrial solar, there will be a level of economic incentive for WM tools to provide sunny, breezy days that current WM audiences can't muster. It's one thing to try to use WM to break a 30-yr drought; its quite another to have an extra 1/2knot of wind over 180 days, or 30 more days of sun per year, translate into $XXX in shareholder value via higher power output.

  22. Re:could this explain by jellomizer · · Score: 0

    Yes I do where I live.

    --
    If something is so important that you feel the need to post it on the internet... It probably isn't that important.
  23. predicted that one by Anon-Admin · · Score: 1, Insightful

    I predicted that one a few years ago. You can not take energy out of a system with out impacting the overall performance of the system.

    1. Re:predicted that one by Anonymous Coward · · Score: 0

      Ahh but if we offset the extra wind resistance from windmills by cutting down tree's that provide the same resistance then we'll be fine!

  24. it's no worse than a butterfly then... by Anonymous Coward · · Score: 0

    man these chaotic systems are a mess!

    1. Re:it's no worse than a butterfly then... by McDrewbs · · Score: 1

      Henceforth, it shall never be known as the butterfly effect again, it is now the wind farm effect.

  25. Climate change, isn't that what we want? by unix_core · · Score: 5, Funny

    Isn't one of the main purposes of using wind power to reverse the effects of global warming, in other words to change the climate?

    1. Re:Climate change, isn't that what we want? by flirno · · Score: 1

      If you go back far enough you will find the answer is no. Wind power was proposed to provide an alternate source of energy to reduce carbon pollution to slow climate change. They hadn't thought far enough ahead to consider climate or other effects of the things on large scale. Up until that point 'wind farms' were more theory than practice.

    2. Re:Climate change, isn't that what we want? by jkflying · · Score: 1

      Yeah, the title is misleading. It will cause global *cooling* if we put wind farms everywhere. Which is climate change, but the good kind (for now).

      --
      Help I am stuck in a signature factory!
    3. Re:Climate change, isn't that what we want? by phantomfive · · Score: 1

      If you go back far enough wind power was used mainly because of a lack of other power sources (if you lived in Oklahoma before the power grid came to your town, it was an ok alternative).

      Modern wind power was proposed because oil prices were rising too high. Worrying about CO2 came later.

      --
      "First they came for the slanderers and i said nothing."
    4. Re:Climate change, isn't that what we want? by ChrisMaple · · Score: 1

      Isn't one of the main purposes of using wind power to reverse the effects of global warming, in other words to change the climate?

      If you go back far enough you will find the answer is no. Wind power was proposed to provide an alternate source of energy to reduce carbon pollution to slow climate change.

      In summary: "A" "No, A"

      --
      Contribute to civilization: ari.aynrand.org/donate
  26. yet another reason for solar by DragonTHC · · Score: 1, Funny

    This is a great boon to those looking for a reason to choose solar over wind.

    We could ditch oil, coal, and nuclear entirely if we just build solar farms.

    --
    They're using their grammar skills there.
    1. Re:yet another reason for solar by Anonymous Coward · · Score: 0, Insightful

      > We could ditch oil, coal, and nuclear entirely if we just build solar farms.

      Well, sure. Because nothing would grow due to lack of ground heating, and our remaining population of about 3 people wouldn't need all that much energy.

    2. Re:yet another reason for solar by Anonymous Coward · · Score: 1

      We could ditch oil, coal, and nuclear entirely if we just build solar farms.

      I don't think you realize how difficult it is to build solar farms. The surface of the sun is almost 6000K so the type of exotic material that could make a farm work there has not really been invented yet, and forget about getting your average earth plants and animals to survive there. Not to mention the enormous cost of transporting the farm equipment and building materials 150+ million km from here.

      I kid, I kid...

    3. Re:yet another reason for solar by Anonymous Coward · · Score: 1

      Solar has the net effect of cooling the Earth as well. Energy that would have been absorbed by the Earth's crust would instead be transferred to electrical devices.

    4. Re:yet another reason for solar by Yvan256 · · Score: 2, Funny

      Dumbass, he wasn't talking about "building a farm on the Sun", he was talking about a farm where we could grow our own tiny stars right here on Earth.

    5. Re:yet another reason for solar by Anonymous Coward · · Score: 0

      I am pretty sure what you are talking about is a "star farm". The GP is right about what a solar farm is.

    6. Re:yet another reason for solar by Yvan256 · · Score: 1

      http://en.wikipedia.org/wiki/Solar
      Solar may refer to: (Astronomy) of or relating to the Sun.

      http://en.wikipedia.org/wiki/Sun
      The Sun is the star at the center of the Solar System.

    7. Re:yet another reason for solar by Immerman · · Score: 1

      Well, except we need a major leap forward in cost-effective energy storage technology first, or a global superconducting power grid. The major problem with solar is that our energy consumption is not in phase with the day/night cycle, so a city will need several gigawatt-hours of storage capacity for solar to be able to supply all it's needs. There are some interesting new technologies emerging in the field, but nothing's quite there yet.

      Not to mention cloud cover can severely impair generating capacity for days or weeks at a time, so you still need a fallback plan. As a backup though fossil fuel generators would be much less of a problem.

      It's also worth noting that currently only about 14% of energy consumption in the US is in the form of electricity (4,000TWh/yr out of 28,000TWh/yr), so if we're serious about eliminating fossil fuel dependency not only do we need to replace current generating capacity, we also need to increase production 7-fold

      --
      --- Most topics have many sides worth arguing, allow me to take one opposite you.
    8. Re:yet another reason for solar by polar+red · · Score: 1

      t's also worth noting that currently only about 14% of energy consumption in the US is in the form of electricity (4,000TWh/yr out of 28,000TWh/yr), so if we're serious about eliminating fossil fuel dependency not only do we need to replace current generating capacity, we also need to increase production 7-fold

      We can do a lot by just being more efficient. Did you know that 75% of the energy being 'used' in an internal combustion engine is wasted?

      --
      Yes, I'm left. You have a problem with that?
    9. Re:yet another reason for solar by polar+red · · Score: 1

      Whoosh.

      --
      Yes, I'm left. You have a problem with that?
    10. Re:yet another reason for solar by cdrguru · · Score: 1

      Except there is a choice: some hugely efficient storage mechanism or just turning stuff off at night.

      So far, there is no hugely efficient storage mechanism. Pumped water works, but not on the kind of scale that would be needed. Thermal storage sort of works, but nobody has ever tried it on a large scale, not to mention a huge scale (as in nationwide). Batteries do not work, flywheels do not work, and neither do any other "conventional" energy storage technique.

      Solar remains a supplement until storage problems are solved - and it is important to understand that they may never be solved in an adequate manner. It is certainly going to be cheaper and more efficient to run a nuclear plant that implement some type of storage technique that has losses above 25%. Can you imagine what the effects of using lead-acid batteries to power the nation at night would be?

    11. Re:yet another reason for solar by Anomalyst · · Score: 1

      we could grow our own tiny stars right here on Earth.

      Then strip them, petrify them and cover them in grits.

      --
      There is no right to feel safe thru security vaudeville at the expense of everyone's freedom, privacy and tax money.
    12. Re:yet another reason for solar by Immerman · · Score: 1

      Sure, but we can't actually make huge leaps forward in efficiency, entropy is set firm against us. Vehicles are probably the "easiest" since small, portable, low maintenance ICEs are also generally the least efficient. we could probably bring that down to 30%-50% wasted by going electric: say we could manage phenomenal 90% efficient batteries, motors, and charging systems (grid distribution, home storage system, whatever), that's still 1-0.9^3 = 27% energy waste even before we factor in generating efficiencies (if non-renewable) and additional mechanical losses if we're not using in-wheel motors. And transportation is actually less than 20% of energy consumption. Heating and cooling systems are already at very nearly their theoretical limits, though most residential buildings are under-insulated so we could improve that at least. Industry and agriculture are actually the major culprits, and they mostly have have efficiencies of scale - not least of which being the guy walking around all day keeping things tuned up.

      So yeah, efficiency improvements can be one of the major players, but even if we can by some miracle halve our energy waste we still need to more than triple our electricity production if we're going to get off fossil fuels. I don't see renewables taking up all that slack in the near term, which means we need to go nuclear in a big way. On the plus side that's further incentive to build out grid-tied battery banks as a buffer since nuclear reactors can't vary their output nearly fast enough to balance load variations the way gas generators can - currently the power plant needs to ramp up production the instant you turn on a lightbulb to keep everything balanced.

      --
      --- Most topics have many sides worth arguing, allow me to take one opposite you.
    13. Re:yet another reason for solar by polar+red · · Score: 1

      eating and cooling systems are already at very nearly their theoretical limits, though most residential buildings are under-insulated

      You know that's an incredible understatement, do you? It is possible to reduce heating and cooling by 90% for nearly all buildings. example : http://www.antarcticstation.org/

      --
      Yes, I'm left. You have a problem with that?
    14. Re:yet another reason for solar by Immerman · · Score: 1

      Very true, in fact in much(most?) of the world you can reduce heating/cooling almost to zero simply by using passive solar design. But that's only applicable to new construction, it's difficult if not impossible to retrofit existing structures to anything approaching the same levels - and the energy waste associated with tearing down an existing structure and building something new and efficient generally rivals the energy you would save with the new structure for at least several decades, so it's not necessarily a good deal, especially if we're actually shifting to cleaner fuels so that the energy used today is much more ecologically "expensive" than the energy we'd be using when the new building would finally break even. And even if we include all residential power consumption we're still only talking about 11% of our total energy consumption.

      Efficiency is great, we could probably reduce our energy footprint by 20-30% without further sacrifices, and the cheaper methods will help slow the massive surge in consumption we're beginning to see as most of the worlds population begins to consume energy at rates comparable to the "developed" world. But it can only ever be a small part of the solution. If we can develop cheap, efficient, grid-scale batteries then renewables can help with baseload, which will also reduce generating inefficiencies, distribution too for residential and commercial uses where solar could generate much of the power on-site.

      world energy consumption, condensed from Wikipedia

      37% Industrial users (agriculture, mining, manufacturing, and construction)
      27% inefficiencies in energy transmission and generation
      20% Personal and commercial transportation
      11% residential heating, lighting, and appliances
      5% commercial (lighting, heating and cooling of commercial buildings, and provision of water and sewer services)

      --
      --- Most topics have many sides worth arguing, allow me to take one opposite you.
  27. Trees affect the wind too! by erroneus · · Score: 4, Insightful

    You know, there are large projects which involve planting trees along freeways to help reduce the noise of the vehicles passing through. And sometimes, in cities where the tall buildings grow, the streets are extremely windy because the streets, sans foliage, tend to channel and concentrate the flow of air as it rushes from high pressure to low pressure zones.

    Trees and wind farms do tend to act against the constant shift of balance from high to low. And without them resisting (but not stopping) the flow of air, the changes become more gentle... at least near the surface... (Nothing is stopping the flows where the REAL weather is happening... up, thousands of feet above the surface of the ground.)

    "You cannot take energy out of a system without impacting the performance of the system." Yeah... kinda true... sort of... but the thing that makes weather is discarded energy sent to us from the sun. The sun sends out its energy in limitless amounts. No amount of pin-wheels will change what the sun is doing and so the difference in potential which is where we get energy, will remain pretty much the same regardless of how much we are able to extract from it.

    1. Re:Trees affect the wind too! by Lumpy · · Score: 1

      I have had some rabid grenies claim to me that the windmills were slowing the earths rotation.

      --
      Do not look at laser with remaining good eye.
    2. Re:Trees affect the wind too! by Yvan256 · · Score: 1

      Counter-argument: what if it was actually speeding up the Earth's rotation?

    3. Re:Trees affect the wind too! by Anonymous Coward · · Score: 0

      Just make sure that half are facing west and the other half facing east - should cancel each other out.

  28. Just so we're clear... by DemonGenius · · Score: 2

    ... change of climate (which is what I think TFA is implying, didn't read though) is not the same as "climate change".

  29. Re:obvious by miknix · · Score: 4, Insightful

    Changes are made to a ecosystem and the ecosystem reacts to those changes, news at eleven.

  30. Compare this to the heat island effect by swampfriend · · Score: 2

    http://www.epa.gov/hiri/ "The term "heat island" describes built up areas that are hotter than nearby rural areas. The annual mean air temperature of a city with 1 million people or more can be 1.8–5.4F (1–3C) warmer than its surroundings. In the evening, the difference can be as high as 22F (12C)." Great news story, I really feel clued in to the important issues of the day. *kills self*

  31. BS by Anonymous Coward · · Score: 0

    That's wrong. These are windmills, not wind fans. They are passive, and don't blow wind, but rather turn the turbines based on wind that's already present. The only wind I hear blowing is the researcher who provided the hazy "facts" for this article.

    1. Re:BS by EmagGeek · · Score: 1

      I don't know if you're just a troll, but obviously the energy content of the wind, particularly with respect to velocity and momentum, changes as the wind passes the turbine blades.

      The wind is basically slowed down and that change in energy spins the turbine which then produces electricity. It is intuitively obvious that doing this on a large enough scale would change wind patterns enough to modify the local climate.

    2. Re:BS by Lumpy · · Score: 2

      And this same exact effect is also observed in a forest. And those areas where the wind farms are (except for off shore ones) used to have Huge old growth forests only a few hundred years ago if you are talking about the USA, 6000 years ago if you are talking europe, asia, middle-east, etc..

      So what about the effect on climate from all those damned trees?

      --
      Do not look at laser with remaining good eye.
    3. Re:BS by Yvan256 · · Score: 1

      How about this: if, about 6000 years from now, we figure out that windmills are worst than trees, we'll cut them up to harvest the metal and plant new trees in their place.

  32. Misleading Headline by Anonymous Coward · · Score: 0

    The headline is misleading because you think this is related to Global warming, which it isn't. The global climate isn't getting warmer because of wind mills.

  33. It only causes measurement problems by Hentes · · Score: 3, Informative

    Windfarms only cause apparent climate change when meteorologists have their thermometers on the ground. Mixing air of different temperatures doesn't heat it, not while the conservation of energy is valid.

    1. Re:It only causes measurement problems by Lumpy · · Score: 2

      There you go again, bringing fact and sanity into the conversation.

      Stop that, it's an election year, and foaming at the mouth counter-rationalism statements are what is required.

      I'm mostly concerned that the blades will cut the puppies and kittens in half when it rains cats and dogs.

      --
      Do not look at laser with remaining good eye.
    2. Re:It only causes measurement problems by amRadioHed · · Score: 1

      No, what they are measuring is a real climate change. By your logic, if you could magically pipe arctic air into a rain forest it wouldn't change the climate at all because the average temperature of the system isn't changing. The part that you miss is that the actual local temperatures matter a lot. In fact they're all that matter. The measure of the average global temperature you hear a lot about in the context of global warming is a convenient yardstick, but what is actually important is how it translates to hotter/colder/wetter/drier conditions in specific locations.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    3. Re:It only causes measurement problems by Hentes · · Score: 1

      But local temperatures aren't independent of the global climate. Assuming that global warming is caused by CO2 emissions, by the function of energy production fossil fuels cause a logarithmic surface temperature increase, while windfarms only cause a constant one. The temperature increase is constrained to a small area, while the electricity generated can be transported much further. Windfarms aren't built in preservations where a change in the microclimate would have consequences.

    4. Re:It only causes measurement problems by amRadioHed · · Score: 1

      I'm inclined to agree with that. I doubt this small local change in the climate will cause serious problems. Many things we do have much more noticeable changes to local climates. That doesn't mean I think what you said in your original post was correct :)

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
  34. No-Guilt Massive Energy Transfers by Spinlock_1977 · · Score: 4, Interesting

    I think this almost falls into the 'no shit, Sherlock' camp. I'm glad someone with credentials is finally saying it. Please pass it along to the geo-thermal guys, who seem to think that sucking energy from the inside of this planet will never have an effect. Oh, and the wave-power-generation guys need to know too - they'll be disturbing ecologies and water flow patterns for miles around - who knows how far those effects will cascade? Scale counts - oil consumption wasn't a problem until we scaled it out - the same fate awaits any terrestrial energy source we scale.

    There are only two places to get energy: 1. Earth, 2. Not Earth. Given a choice, I'll choose 2.

    --
    - The Kessel run is for nerf herders. I can circumnavigate the entire Central Finite Curve in a lot less than 12 parse
    1. Re:No-Guilt Massive Energy Transfers by DerekLyons · · Score: 4, Insightful

      the same fate awaits any energy source we scale.

      There, fixed that for you.
       

      There are only two places to get energy: 1. Earth, 2. Not Earth. Given a choice, I'll choose 2.

      Getting energy from "Not Earth" means (eventually) dumping energy into the Earth's systems. What happens when you scale it up? TANSTAAFL.

    2. Re:No-Guilt Massive Energy Transfers by Anonymous Coward · · Score: 1

      "Please pass it along to the geo-thermal guys, who seem to think that sucking energy from the inside of this planet will never have an effect."

      Obviously it will have an effect. But not at any scale that matters. It's kind of like peeing into the ocean. Yes, there's an effect, but the thermal effect is pretty darn small on the scale of the entire Earth, and it was on its way out of the hot interior of the Earth anyway, albeit at a slower pace. If you're thinking spectacular effects like huge earthquakes or erupting volcanoes, no, using geothermal energy isn't going to do that.

      All of these processes have an appreciable effect, but "detectable" does not necessarily mean "significant".

      And for that matter, pumping energy into the Earth from space would also have an obvious net effect, so I'm not sure why #2 is your favorite choice.

    3. Re:No-Guilt Massive Energy Transfers by formfeed · · Score: 1

      - who knows how far those effects will cascade? Scale counts

      That's why I never open the tap all the way. That and fear of shark attacks.

    4. Re:No-Guilt Massive Energy Transfers by blind+biker · · Score: 1

      Getting energy from "Not Earth" means (eventually) dumping energy into the Earth's systems. What happens when you scale it up? TANSTAAFL.

      While I am not the biggest fan of solar energy, using it does not dump any surplus into the Earth - about the sam would have been absorbed anyway. There might be a small difference in total albedo, but it's negligible.

      --
      "The agriculture ministry is not in charge of Gundam" - Japanese ministry official.
  35. Scale by Anonymous Coward · · Score: 0

    In other news, cutting down a tree can lead to deforestation.

    It's all about scale. The big question is, "How many wind turbines (and fo what size) would it actually take to harvest enough energy to produce a noticable effect?"

  36. Skyscrapers and any city by Lucas123 · · Score: 2

    Skyscrapers and any large man-made structures also have an effect on regional climate. Is this any different? At least with wind farms, we're not dumping high levels of carbon dioxide into the atmosphere and superheating the earth.

  37. /., I am disappointed by Anonymous Coward · · Score: 0

    a) This is not first comment on the thread
    b) You completely failed the delivery.

  38. Re:obvious by VortexCortex · · Score: 1

    I also have nightmares about the valley of the living windmills.

  39. Re:Duh, removal of enegy from enviro affects envir by Gotung · · Score: 5, Funny

    To sum up your post: entropy is a bitch.

  40. Re:Duh, removal of enegy from enviro affects envir by judoguy · · Score: 1
    --
    Peace is easy to achieve, just surrender. Liberty is much harder get/keep.
  41. Less Impact by jimmerz28 · · Score: 1

    This option doesn't emit carcinogens into our environment leading to health issues down the road.

    It may cause climatological changes in the local area, but call me crazy for thinking I'd rather adapt to weather pattern changes than have my body try to adapt to carcinogens from current energy producing means.

    1. Re:Less Impact by barv · · Score: 1

      "call me crazy for thinking I'd rather adapt to weather pattern changes than have my body try to adapt to carcinogens from current energy producing means".

      It is possible to put all sorts of filters, precipitators and scrubbers on the exhaust of a power station. Where regulations requiring such equipment are enforced, these can clear all carcinogens from the exhaust.

      OTOH the health aspects of subsonic vibration need research. There are many complaints from people who have wind farms built near their homes. Perhaps the solution is to require the wind farm corporations to own all the land for a mile (or whatever) around any windmill.

    2. Re:Less Impact by jimmerz28 · · Score: 1

      The only complaints that have any merit are the (mostly perceived) detriment to property value.

      We've had them for years powering Bowling Green, OH and if anything they've been an attraction. http://www.bgohio.org/departments/utilities-department/wind-turbines

      Do you have any scholarly references to subsonic vibrations causing health issues with wind turbines? I'd be interested in reading those because it sounds like psycho-FUD tbh.

    3. Re:Less Impact by barv · · Score: 1

      Your reference looks like tourist publicity. Visiting is not the same as living with it next door.

      Do a google search of "research on health aspects of subsonic vibration wind farm".

      You will notice that not much scholarly research appears to have been done. That is why I suggested the health aspects of wind farms needed research.

  42. Just like forests. by Lumpy · · Score: 1

    Trees also slow the wind causing a LOCAL change. So should we also ban trees?

    --
    Do not look at laser with remaining good eye.
    1. Re:Just like forests. by flirno · · Score: 1

      Not only that trees capture moisture and create ground level humidity resulting in temperature change moderation. Darn those rascally megaflora.

  43. Re:obvious by miknix · · Score: 2

    http://en.wikipedia.org/wiki/Ecosystem
    "An ecosystem is a biological system consisting of all the living organisms or biotic components in a particular area and the nonliving or abiotic component with which the organisms interact, such as air, mineral soil, water and sunlight."

    Even if windmills are not living beings, they interact with wind that in turn interacts with living beings and other abiotic components. I'm no biologist but I think this is quite obvious.

  44. So would planting trees ... by Anonymous Coward · · Score: 1

    Yes ... As would, planting trees, growing crops, erecting a city. Anything you put there that isn't there now will change it somehow. Did we need a study to prove this?

    1. Re:So would planting trees ... by Anonymous Coward · · Score: 0

      No, not really. Unfortunately headlines are the only way some people 'learn' (and by 'learn' I mean 'finding out what the competition is claiming now') anything anymore.

  45. Humanity is a Disease by j4w7 · · Score: 1

    We just need to accept the fact that we destroy, everything, on a regular basis with reckless abandon. Once we accept the fact that we're killing ourselves for profit, we'll live short but more content lives. ... and I don't really believe any of that. I just get annoyed at the shenanigans around trying to find happier alternatives to pillaging the planet for limited resources.

    1. Re:Humanity is a Disease by flirno · · Score: 1

      Given that the planet is a rather limited place there isn't really a happy alternative. We're just moving crap from one pile to another and arguing NIMBY although if you elevate your perspective a bit its more of an issue of NOMP (not on my planet) but then we don't have any choice since everyone is stuck here. So we're back to move junk from one spot to another and even though it accomplishes nothing at all the various points of view feel like they are doing something at least by either arguing about it or stirring the junk.

  46. I read the article by Anonymous Coward · · Score: 0

    “Overall, the warming effect reported in this study is local and is small compared to the strong background year-to-year land surface temperature changes,”

  47. Misleading story about microclimate, not global by bug1 · · Score: 1

    ... might have noticeable impacts on local to regional weather and climate

    In other news, jumping up and down on the spot might have noticable impacts on the temperature in your imediate area.

    Does it imact global weather and climate, who cares... weve already been paid.

  48. Here's a shocker by Grayhand · · Score: 4, Interesting

    A stretch of highway will have far more affect on climate than an entire wind farm. I live in the eastern end of the Phoenix metropolitan area and just driving 15 miles west in the summer can increase the temperature 10 degrees just from all the concrete and black top. The temperature difference they are talking about from windmills is minor. Black top causes major increases. If you want to reduce heat don't not build windmills make roads a lighter color. It's been discussed for years but there's no political will to do it.

    1. Re:Here's a shocker by metrometro · · Score: 1

      Chicago is painting roofs white and planting roof grasses for this purpose. http://chicagogreenroofinitiative.com/

    2. Re:Here's a shocker by Ferretman · · Score: 1

      If you make roads light you'll get greater glare.....you'll have a higher degree of accidents due to blindness/squinting/etc.

      Ferret

      --
      Sic gorgiamus allos subjectatos nunc
  49. Not even wrong? by PeterM+from+Berkeley · · Score: 1

    You don't think wind moves through trees frictionlessly, do you?

    So whatever wind energy gets turned to heat is "harvested" right? (In addition to photosynthesis).

    And trees do NOT "turn wind energy into strutural integrity", they become stronger as a by-product of being stressed by wind. They actually are turning CO2, sunlight, water, and soil nutrients into structural integrity.

    And I bet the fundamental point is correct, a bunch of trees probably absorb more wind energy via friction than windmills would generating energy.

    --PM

    1. Re:Not even wrong? by drinkypoo · · Score: 1

      So whatever wind energy gets turned to heat is "harvested" right? (In addition to photosynthesis).

      No, only if the trees actually use it for something.

      And trees do NOT "turn wind energy into strutural integrity", they become stronger as a by-product of being stressed by wind.

      Very good, you know enough about plants to understand what I said. *clapclap*

      They actually are turning CO2, sunlight, water, and soil nutrients into structural integrity.

      No, they're turning those things into themselves, mostly carbon, virtually all of which comes from CO2, and nitrogen, which either comes from the air or the soil depending on the plant.

      And I bet the fundamental point is correct, a bunch of trees probably absorb more wind energy via friction than windmills would generating energy.

      Yes, that's my point. Thank you for vindicating me even while simultaneously failing to understand my comment.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  50. Forget this climate change bollocks by Tastecicles · · Score: 0

    The simple fact is that wind farms will never pay for themselves, economically or ecologically. They're just an excuse for Governments to force energy suppliers to spend money they could better spend in, oh, I don't know, improving particulate filters in fossil-fired plants?

    --
    Operation Guillotine is in effect.
  51. ION - Planting Forests Can Cause Climate Change by Anonymous Coward · · Score: 0

    Tall forests detour and absorb much more moisture and k.e. that any dozen wind farms. And, believe it or not, they also kill a lot of birds - in many different ways, not just through bough-collisions.

    Also, the impact of a hundred wind farms is negligeable, when compared to the razing to the ground of whole mountains by the handful, or the burning of half of regional-sized shale deposists in order to rip them up, turn them into juice, and carry them elsewhere.

    Also, stepping on the brakes can accelerate your car.

  52. Keystone Cops by Anonymous Coward · · Score: 0

    The Environmental community/AGW Crowd are becoming parodies of themselves.

    For them, energy generation technologies are like play whack-a-mole.

  53. Local Climate Change by DaMattster · · Score: 0

    I can see how a wind farm could effect climate change on a small scale. Blades on the wind mill create pockets of turbulence which could disturb, albeit in a small way, the local climate. Others have noted that the headline is rather poor but, given enough sizeable wind farms, there could be a sizeable impact. California has some large scale wind farms that could effect climate change for nearly half of the large, populous state so the change could be larger.

  54. DUH! by dzfoo · · Score: 1

    Of course, duh! Who in the world ever imagined that producing energy at the scale needed for modern global consumption would not have an impact on its source or environment. The type of source is of little consequence.

    The same, I'm sure, holds true for bio-fuels, fusion, and even solar power. $DEITY only knows what extreme changes will occur to the surface temperature of the planet if we ever figure out how to absorb large quantities of solar light as our primary energy source.

              -dZ.

    --
    Carol vs. Ghost
    ...Can you save Christmas?
  55. Re:could this explain by jkflying · · Score: 1

    Then the wind farm might make it slightly warmer at night and slightly cooling during the day, due to stirring up the inversion layers and causing turbulence. Nothing here. Move on.

    --
    Help I am stuck in a signature factory!
  56. So does burning fossil fuels by Anonymous Coward · · Score: 0

    Burning fossil fuels puts contaminents in the air and CO2 in the atmosphere. If you beleive in global warming, that CO2 is actually causing climate change, not like the wind farm where if you stop spinning the mill, everything will normalize to the previous condition relatively quick.

  57. what do large-scale solar installations do? by Anonymous Coward · · Score: 0

    I was wondering about this... would covering Nevada in solar panels change the local climate and turn some other state into a desert?

  58. Cities also change climate. by barv · · Score: 1, Interesting

    Cities with tall buildings affect wind patterns and the change in ground cover (bitumen roads instead of trees and grass) is known to produce local warming.

    It seems reasonable that wind turbines would similarly affect wind patterns, and if the ground cover changed due to clearing trees, they might also affect radiation absorbtion.

    There do seem to be a lot of complaints about subsonics emanating from those who have wind farms planted near to their homes. Perhaps government should finance some studies of the affect of such subsonics on health before allowing further plantations.

  59. Wille Smits -heals- climate over orangutan shelter by ivi · · Score: 1

    So, Smits creates habitat for orangutans, mostly by restoring diverse flora in formerly dismal/barren parts of Bornio.

    They've noted significant changes to local (micro-)climate, ie, over their new plantations & living spaces, for both people & oran's.

    Brief reports of the changes are to be heard in Smits' excellent TED talk on his purpose & means to restore habitat to these sensitive animals:

    + http://www.ted.com/talks/willie_smits_restores_a_rainforest.html

    There may be some more details on the hows & outcomes, eg, in resources to be found here:

    + http://blog.ted.com/2009/03/03/learn_more_abou/

    (For a few blog articles, search TED.com for "orangutans")

  60. Take here, miss there... by Anonymous Coward · · Score: 0

    I am amazed that people come to such conclusion. Its not like its obvious that once you take energy off of a system that its missing somewhereelse but ...ITS OBVIOUS. A battery becomes empty if you use the stored energy until you refill it (if its rechargable)... what the hell are scientists / governments / people in general smoking that they notice trivial energy cycles/flows just when it becomes ...maybe.... obvious.

    Start using your brains for once, even its the pityful 10% ....

    Sorry i didnt contribute to this topic except with sarcasm and irony.

  61. A bit disingenuous by mycroft16 · · Score: 2

    The study talks about local temperature changes in the vicinity of wind-farms by comparing non-wind-farm areas very near by. This kind of invalidates the word climate in the headline as climate is global, not local. Weather is local. While the paper does say that if large enough, a wind farm could have a climatic effect, I'm assuming it would have to be an apolitically huge wind farm. The study also notes that the effect is small when compared to anthropogenic factors.

    1. Re:A bit disingenuous by phantomfive · · Score: 1

      The distinguishing difference between climate and weather is not whether it is local. Hope I spelled those wethers right.

      --
      "First they came for the slanderers and i said nothing."
  62. Windmills will reduce global warming and CO2 by Eravnrekaree · · Score: 2, Informative

    The reason fossil fuels are well known to cause climate change is the effect is, practically permenant since we are raising the level of the CO2. The CO2 will STILL BE THERE after we stop burning fossil fuels, even after we have depleted every bit of coal and oil, it will be in the atmosphere for a long time. The idea that wind farms would cause warming is absurd, since wind farms could displace Co2 consumption they would reduce it by reducing Co2 emissions. The effect of reducing or eliminating CO2 would have a far greater positive impact than any negative of wind. The effet of Co2 is permenant and irreversible. A Wind farm can be turned on and off at will.

    Another reason for these renewables is they are renewable, climate change is happening but the fact tht solar and wind are renewable alone makes them better choices than fossil fuels. Fossil fuels will be depleted, first hitting peak and then decling, hence peak oil. THAT is an absolute, gauranteed physical certainty. It is hard to precisely estimate how much longer fossil fuels will last but they WILL run out. And sooner than later. Since data on how much is in the ground is imprecise there is uncertaintly in the precise amount but we have a general idea. Its like you have an hourglass and you can see that the top half of the hourglass is a certain size, but you dont know how far it is filled with sand, because the top half is opaque, but you can see how much has poured into the bottom half and how long it has been pouring in there, thus a rate of depletion,, you know that there is a finite amount of sand in the top half and that it is emptying out, and you can see by the rate it is emptying that the sand will be depleted not too far from now, even though you do not know exactly when, you know it will happen and it is not that far away. The "cornucopians" who think thje earth has an unlimited amount of fossil fuels and that basically we can do anything, that the laws of nature dont matter, that we can if we want generate infinite amounts of fossil fuel energy, basic physics be damned, well, they are basically saying that since we cannot see the amount of sand in the top half of the hourglass that since we cannot make a precise measurement that therefore we might as well just assume the amount of sand is infinite. This is despite thje fact that the top half of the hourglass is of a finite size, the sand is pouring out quickly and already a lot has poured out.

    Basically the cornucopias, they are living in a fantasy world, insisting the top half of the hourglass contains an infinite amount of sand, are in denial about the dire state of affairs and the fact we are headed towards practical depletion of fossil fuels.

    1. Re:Windmills will reduce global warming and CO2 by cdrguru · · Score: 1

      I strongly suggest if you believe as you seem to that you get 10 of your bestest buddies together and shut down and/or destroy a coal-fired power plant nearby. It would have a huge effect - not just on locally produced CO2 but on the entire planet knowing that there are people that feel strongly enough about this issue to actually risk their lives, honor and freedom to do something about it.

      So far, nobody has come forwarded. Nobody. Now, we are certainly living in an age where it is beyond most people's comprehension to do things as were done a few hundred years ago. The America Revolution was started and maintained by people that knew they might be killed for simply stating their beliefs and these folks were willing to start a war. In Scotland people were risking their lives and their families lives by revolting against the English King for 400 years. The few examples lately I can think of are people smuggling weapons into Palestine and a Greenpeace ship attacking the French Navy.

      So far, nobody has stepped forward on the climate change front. I am pretty sure nobody has convictions that are that strong.

    2. Re:Windmills will reduce global warming and CO2 by Eravnrekaree · · Score: 1

      We need good regulations. That is the civilized way to deal with issues. Not mob rule and going and blowing things up. You sound like some sort of a "libertarian" who doesnt like any civilized laws and so on to try to get a hold of our problems, but you would be the first to take to your guns and start shooting the place up when you think something needs to be fixed. Such a mentality of extremes.

      By the way we are stepping forward, in a civilized way. You act like violence is the only way to solve problems. Thats a conservative way of thinking. Regulations, laws and rules is how we solve problems non violently. But it seems like the GOP, this is the hypocrisy, they are against moderate forms of problem resolution like regulations, but they are the first to run for the bombs when they see a problem that bothers them. It seems like they go between two extremes, doing nothing about problems or are on a full blown bomb throwing war.

      To really address climate change we need to get accurate information to the people and that mean we need independant media outlets that report scientific information, not outlets that are controlled by wealthy corporations that have an axe to grind. The problem today in the USA is due to the fact that due to Conservative ideologies themselves it is not a Democracy, wealthy special interests such as corporations control the media and the information that people recieve and use that control to manipulate people into supporting agendas that benefit the wealthy but harm everything else, without people even knowing that is what they are doing. We need a media that simply reports facts and the consequences of decisions, not tries to white wash and ignore them when convenient. The Media through advertising is funded by corporations if not directly owned by commercial corporations. These corporations have one overriding goal, to make profits for the owners of the corporation. it is not to help the community or protect the environment. Corporations will do anything they can get away with, if they are allowed to pollute a river, they will. the only way to protect the river and those who drink its water is make regulations.

        Corporations such as oil companies have huge profits to protect. The interests of environmentalists are in human welfare and the future of this planet. No environmentalist wants global warming, we wish it were not so. Conservatives have problems with seperating what they want from what is possible. Environmentalists wish we didnt have a problem with global warming but we have to look at things objectively, if there is a problem with global warming there is, and we cannot try to distort or deny things because we dont like to face them. We have to look at facts, no matter how unpleasant they are, and do what is best for protecting our planet and human, animal and environmental health.

    3. Re:Windmills will reduce global warming and CO2 by Oakey · · Score: 1

      " The effect of reducing or eliminating CO2 would have a far greater positive impact than any negative of wind. The effet of Co2 is permenant and irreversible."

      eliminating it? Enjoy your dead Earth.

      --
      "Dre don't get as high as me.... I'm Cheech and Chong" - Snoop Dogg
    4. Re:Windmills will reduce global warming and CO2 by Uberbah · · Score: 1

      I strongly suggest if you believe as you seem to that you get 10 of your bestest buddies together and shut down and/or destroy a coal-fired power plant nearby.

      Argumentum absurdum. Yawn.

    5. Re:Windmills will reduce global warming and CO2 by Eightbitgnosis · · Score: 1

      The effet of Co2 is permenant and irreversible.

      Maybe it's just my state, but we've got this thing called the ocean, and these other things called trees around here. They absorb carbon dioxide out the the atmosphere. Then again; maybe this is just a local thing.

  63. Really? by Kupfernigk · · Score: 1

    Assuming you're not a troll, I can assure you that here in South-Western England the three trees we have had come down over the years have all been blown down at night. And I've been in some pretty strong winds at night in New England, the Mid-West and the Gulf of Mexico. So where are these "every place I've ever lived"?

    --
    From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
    1. Re:Really? by NatasRevol · · Score: 1

      Yes, storms can happen at night.

      However, most nights are calm, analogous to temperature cycles.

      --
      There are two types of people in the world: Those who crave closure
  64. We cut down those forests. by Anonymous Coward · · Score: 0

    We cut down those forests. And that would have been a MUCH bigger change than the wind farms.

    We put up those city high rises. That covers more change than wind power necessary to move us to a renewable energy infrastructure.

    Are the ones trumpeting this claim also claiming we should tear down all highrise cities, like Austin?

  65. Re:Duh, removal of enegy from enviro affects envir by polar+red · · Score: 1

    energy extraction

    extract from what ? and where does this energy go ? it does not magically disappear. first law of thermodynamics

    --
    Yes, I'm left. You have a problem with that?
  66. that's weird by Anonymous Coward · · Score: 0

    And I thought producing energy wouldn't change anything but the quantity of energy...

  67. Parking lot by itamblyn · · Score: 1

    What are the numbers for a parking lot outside of Walmart? A small local change is not an unreasonable tradeoff for clean power.

  68. Re:Duh, removal of enegy from enviro affects envir by tool462 · · Score: 2

    That makes two things entropy has in common with my ex. (The first: both are always increasing)

  69. Mixing != Warming by Anonymous Coward · · Score: 0

    The turbulence in the wake of the turbines mixes the air. Under the nighttime inversion conditions described in the article, this makes warmer air appear near ground level. But if you look at the system, some of that near-surface cooler air is being mixed into the same air column, which probably results in no temperature change if you look at it integrated over the column.

    Just a meteorologist who does not play one on TV

  70. What kind of change? by Anonymous Coward · · Score: 0

    The issue isn't whether something will make climate change, the issue is whether it will change it for the better or for the worse.

    For example, we already know the Pollution Industry changes it for the worse- that's proven fact. But will wind farms change it for the worse? I'm not so sure.

    The kind of climate change caused by global warming means energy is being added to the atmosphere. That's why we're getting more wind, stronger tornadoes and hurricanes, etc.

    But wind farms will actually spihon off energy from the atmosphere. If it's slowing down the wind, that could be a good thing.

  71. Samzenpus by denzacar · · Score: 1

    I suggest the use of silver bullets and burning the remains.

    Alternatively, get him into a desert somewhere and then nuke the whole thing from orbit.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens
  72. We should switch to... by Nyder · · Score: 1

    ... Oil and Coal, since there is NO way that can hurt the climate.

    --
    Be seeing you...
  73. Waste of Time by bussdriver · · Score: 1

    We are nowhere near using enough wind power for it to become a problem and if we covered everything in those towers over then next 100 years... they lose MOST the wind energy for the tiny surface area the blades cover. This is a complete waste, getting undue attention by the idiotic media.

    How about the controversy of people selfishly and irresponsibly popping out babies? Nobody wants to bring up the TRUE and controversial issue of the population crisis and how it is causing all these problems, from climate change to endangered animals to resource cost increases. We don't even discuss population even being a problem or how we are contributing to the problem and then never even begin to address possible solutions to that problem.

  74. Lack of Meaning = Meaningless by DarthVain · · Score: 1

    Stupid sentence, absolutely meaningless and inflammatory.

    ANY changes "if spatially large enough" *might*... have noticeable impacts on [local] to [regional] [weather] and [climate]....

    If I build a single windmill 1000km high, I bet it might have some noticeable impacts on a whole host of things, likewise if I build 10,000,000 windmills all within close proximity of each other, it will likely have a bunch of different noticeable impacts on "stuff"...

    Anyway, a stupid headline, to a stupid summary, to likely a stupid story, which I'm not going to bother to read.

    1. Re:Lack of Meaning = Meaningless by lgw · · Score: 0

      Stupid sentence, absolutely meaningless and inflammatory.

      So it fits right in with the rest of the AGW religion then?

      --
      Socialism: a lie told by totalitarians and believed by fools.
  75. Its so obvious by StillNeedMoreCoffee · · Score: 1

    Any large scape project impact on a large scale.

    There is no free energy. If you are stealing energy from the weather system, the weather system will change and become a weather system with less energy. If you try to steal energy from the ocean waves, the ocean ecologies will be affected.

    When you farm, you are mining material from the soil, we put back through petro cemicals som of what is taken, but the other solid matter is just gone. Nothing is free, your just mining the soil.

    Burning up petroleum to run cars around is just burning up a finite resource that we have almost taken half of the existing stocks from the ground.

    We don't have much in the way of long term planning around a sustainable earth, either looking at energy resources, food resources or population size. Throw in a good dose of man aided global warming and things could change rather rapidly and within our lifetime, and not for the better.

    The Capitalist system with its sole purpose to make a profit may be the single most destructive force on the planet. It has no breaks on externalized cost or collarteral damage, just the profits that can be had today, let someone else clean up my mess tommorrow.

     

  76. It's an important consideration by Benfea · · Score: 1

    The very places that are ideal to place wind farms tend to be places that birds like to use for traveling long distances. As long as the major bird "traffic lanes" are mapped out before choosing sites to place wind farms, the number of birds killed can be reduced. Put them in the wrong place, though, and you could end up killing an awful lot of them.

    1. Re:It's an important consideration by cynyr · · Score: 1

      Last I knew this had only happened once, and the next year the birds diverted around the turbines. Perhaps building them, and then turning most of during the first migration would solve most of this.

      --
      All of the above was encrypted with a Quad ROT-13 method. Unauthorized decryption is in violation of the DMCA.
  77. Bird Killer by Anonymous Coward · · Score: 0

    Wind Farm can be (potentially) dangerous to birds if implemented in a global scale.

  78. Re:obvious by bolthole · · Score: 1

    I also have nightmares about the valley of the living windmills.

    how could you not reference this?

    http://xkcd.com/556/

    (disclaimer: you probably WERE, but dont be a joke snob; share with the whole class :)

  79. Re:Duh, removal of enegy from enviro affects envir by formfeed · · Score: 1

    Solar energy capture reduces ground heating.

    Not necessarily.

    Solar cells use only a fraction of the incoming energy. If you replace a light colored surface with a dark solar cell, the "waste" energy of the solar cell could be equal or higher than the amount of energy originally captured.

  80. This Post Brought To You By by assertation · · Score: 1

    "This post has been brought to you by the clean coal coalition"

  81. The writing is on the wall by Anonymous Coward · · Score: 0

    Everything causes climate change. Get used to it.

  82. Anything can cause climate change by Karmashock · · Score: 1

    The question is whether it ACTUALLY does...

    The problem with climate models is that they're basically extended MadLibs at this point. We have knowns and lots of blanks that you can fill in with whatever you want. The final story varies wildly and can often be whatever you want.

    Charge one variable and then another and you can get whatever output you want. Want run away global warming with sixty meter rises in ocean level? Some "scientists" have predicted that. What a new global ice age with the world covered in continent spanning iceflows? We can do that too.

    And everything in between. Want global warming AND increased storm activity? We can do that even though that should be fairly tricky by warming the equator and not warming the poles (thus increasing the temperature differentials and thus the intensity of the storms.).

    Climate science needs a lot more study. As it stands, it's not nearly developed enough to make theories. They just don't know enough. Given time, they'll have enough data and have worked out the problems in current analysis.

    --
    I've decided to stop wasting my time responding to AC trolls/sockpuppets... so if you want a response from me... login.
  83. Conservation of Energy? by Integrator · · Score: 1

    I could be very wrong here, but would the conservation of energy, and the fact that eventually all the used energy eventually ends up as heat energy, mean that the only thing these wind mills could do is move heat from the area of the wind farm to the city or where ever the power is used? Perhaps there could be local changes between night and day but those would have to seem to cancel out beyond the transfer to the city. And the city (plus the heat in the electrical lines) would warm up by the exact amount of cooling at the wind farm?

  84. Doh! by Ferretman · · Score: 1

    Well, that's a kick in the head for the AGW crowd...

    Ferret

    --
    Sic gorgiamus allos subjectatos nunc
  85. Um, no shit? by bryan1945 · · Score: 1

    Conservation of energy- suck up wind power or tidal power and something will change. But I'm thinking that the wind/tidal farms would have to be huge to make an global difference.

    --
    Vote monkeys into Congress. They are cheaper and more trustworthy.
  86. Journalists these days by Anonymous Coward · · Score: 0

    Affect, not impact. To impact something is to dent it.

  87. Re:Local Doppler Radar by Anonymous Coward · · Score: 0

    There's an interesting artifact over the nearby wind farm, it always looks like rain on the screen.

  88. And the subject of this article suggests . . . by kickassweb · · Score: 1

    That this is another study funded by the oil or coal or nuclear industry . . .

    --
    I'd love to change the world but I can't find the source code.
  89. Pity the poor , berated farm.. by doccus · · Score: 1

    So, now its also wind farms, plus dairy farms , plus beef Cattle farms, and fish farms, and Haarp farms.. Mr, Farm, you been a naughty plot of acreage! I'm so glad it's not volcanos or sunspots, or magnetic anomalies, or exhaust gases.. it's all the farms' fault...

  90. Not new by jamessnell · · Score: 1

    As far as I know, this was first studied and published about 10 years ago by a group led by Dr. David Keith. This isn't news. No power is "free", everything action has a reaction. Anyway, whatever.

  91. climate change != sublocal heat redistribution by WOOFYGOOFY · · Score: 1

    Climate change is shorthand for " the global, very very long term -multiple centuries long - changing of the atmospheric conditions which give rise to climate and especially temperature "

    From the paper :

    the warming effect reported in this study is local and is small compared to the strong background year-to-year land surface temperature changes. Very likely, the wind turbines do not create a net warming of the air and instead only re-distribute the airâ(TM)s heat near the surface, which is fundamentally different from the large-scale warming effect caused by increasing atmospheric concentrations of greenhouse gases.â

    I don't think I need to elaborate anymore for this group of readers to understand what the difference is. Nor do I need to elaborate on which news outlets malignantly misrepresented this paper's findings and what those news outlets motivations were.

    This is a little case study of what the deniers in the media have systematically done to the the science of climate change and to public opinion of climate change.

    Unless you're talking about QM or Post Modernism, there are not many realities, there is one. That reality includes the certainty of catastrophic, civilization-ending climate change if we continue on our present course.

    Such climate change is a clear and present danger to the national security of the United States of America.

    The individuals who have elected to lie to the American public regarding the reality and cause of climate change represent the same national security threat and form a distinct class of criminal that society has every right to pursue, prosecute and punish.

    You cannot yell "fire" in a crowded theater.

    You cannot yell "no fire" in a burning theater.

    You cannot conspire to conceal the reality of an impending iceberg because you are a first class passenger profiting from delay and you know you can bribe your way onto a lifeboat leaving others to die.

    Misrepresenting this paper's conclusions is a criminal, generationicidal act.

    Slashdot should not aide and abet mass murder.

  92. There's always something... by Anonymous Coward · · Score: 0

    Let's just abandon civilization and go back to hunter-gatherer societies.

  93. Another Study... by Anonymous Coward · · Score: 0

    Another study suggest that the wind farm might cool down the planet because:
    1- Being paint in white they reflect light like ice.
    2- They create shadow on the ground.
    3- They remove energy from the wind that was created by the heat.
    4- They provide energy to many heat pumps for big cities and for a lots of Refrigerators.

    KA-CHOW!