UN Climate Report Fails To Capture Arctic Ice: MIT
An anonymous reader writes "The United Nations' most recent global climate report 'fails to capture trends in Arctic sea-ice thinning and drift, and in some cases substantially underestimates these trends,' says a new research from MIT. The Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report, released in 2007, forecasts an ice-free Arctic summer by the year 2100. However, the Arctic sea ice may be thinning four times faster than predicted, according to Pierre Rampal and his research team of MIT's Department of Earth, Atmosphere, and Planetary Sciences (EAPS)."
The anti-Global Warming people will ignore it. The details don't matter, the truth doesn't matter, and if there's the slightest mistake, error, or just plain poorly worded statement, they'll treat it as proof of a conspiracy dedicated to driving man back to the Stone ages, except with less Jesus and more abortions.
I guess we'll all drown, then.
"First they came for the slanderers and i said nothing."
We obviously won't be able to stop this melting by just reducing emissions. It will be really interesting to see what happens with shipping lanes and military strategy if we can go right over the pole (with boats, instead of just with missiles).
No you don't.
The US military has detailed information on ice sheet thickness going back 50 years but it's mostly classified. The Russians have similar information and I think their excitement recently over exploiting the arctic shows where they think the trend is heading. They aren't looking at a 100 years from now but in the next decade or two. Most of the discussion is over coverage of the ice but the more telling is thickness. As the ice thins a huge part of the arctic could be exposed in a single season from a major collapse in sea ice.
Nothing to see here citizen. Move along now.
We're just going to keep pretending these long term problems are not a big deal.
Because when it IS a big deal.. We'll be dead by then. So.. S.E.P.
Screw ibtimes, worthless ad-walling craps.
http://www.sciencedaily.com/releases/2011/08/110811113956.htm
Typical science news "ZOMG our predictions could be wrong, but we need $x million to do more research about if we are right or not". Everything is made into a crisis to get more funding. Just look at all the hyped up illnesses in the past decade, if all those "predictions" were right all of us would be dead with bird flu/swine flu/MERSA/SARs.
Taxation is legalized theft, no more, no less.
Interesting that /. has categorized this article as "Politics" instead of "Science."
Not that I'm complaining, necessarily.
sig has been sent away for a few small repairs...
That is the OPPOSITE MESSAGE from what the story actually says. Does slashdot even have editors anymore?
I was his colleague. He did refuse to play the political game. Also there was a strict policy against snorting whiteout that he was always running into, but it was probably more the political thing.
Yeah because we've been pretending its not there for long enough, shouldn't it have gone away by now?
I'll take the opportunity to re-state this: Global Warming is an accurate but misleading appellation. Warming a fluid system, such as a planet's atmosphere or water in a pot, results in more, and more vigourous motion. Weather will become more violent. Some places will get colder or wetter. Larger weather systems will mean, at times, more icy air will be swept from the poles into the temperate zones and similarly sweep warmer air to the poles. It will be disastrous and expensive. People who rarely see frost will get heavy snow, like us, today. http://www.stuff.co.nz/national/5443420/Major-weather-disruption-around-NZ
If only we had a best answer button.
-- $G
What the previous poster was saying, was that 'just because it's a manufactured crisis doesn't mean that it is a crisis', and on that point he is quite right. Very few crises, whether man-made or natural, and cried out by the media *or* scientist, rarely come to pass. He didn't imply that crisis can't happen, just that the track records of both the media and scientists cast serious doubt on their claims, and it is their fault, no one else.
They have both learned that the squeaky wheel, and the crazy-eyed doom-spouting researcher or scientist, get the oil (money). It makes more sense now, doesn't it? They want to eat at nice restaurants and drive BMW's too, just like everyone that works for the UN.
Rather than wasting money and trying to avert climate changes that we can't stop (regardless if we caused it or not), we should be spending time and effort not on stopping it, but dealing with the change. But, because there apparently is not nearly as much money to be made in such planning, rather than in control of people's lives (which, what a coincidence, is very much what many government and UN bodies want), this will be considered 'Not doing anything!' and will not be pursued.
Independent, truly progressive thinkers, can now see this 'crisis' for what it truly is (a wealth redistribution plan, and a power grab), and be prepared to resist. Power to the people!
All of this reminds me of the eroding coastline where I live, that as the beaches disappear and the ocean comes lapping at the foundations of expensive condos and mansions, our state and local governments spend millions (every few years!) to 'replenish' the sand that waves have washed away. Mind you, this has been happening for all of Earth's history, the changing coastlines (so it's not Global Warming, friends), but what do we do? Stop building within spitting distance of the powerful, ever-constant, ocean's waves? No. Humans keep building on untenable and impermanent coastline, hope for the best, then seem shocked when one storm comes along and threatens all of this hard work. What nerve! Since we can't change mother nature, then we have to change something, right? So some people try to change other people's lives and livelihoods. No thanks. You can take your hysterics elsewhere.
It has been known for a while that the 2007 report failed to include the effect of sea ice loss, mainly because there was no reliable data at that time, I think. We aren't going to drown in 10, 20 or 30 years, but sea ice is shrinking and thinning faster than previously expected. Most glaciers are shrinking too.
2019 is going to be the year of Linux on the desktop.
Warming a fluid system, such as a planet's atmosphere or water in a pot, results in more, and more vigourous motion. Weather will become more violent.
That fails to explain why there are colder outer planets with significant atmosphere that have orders of magnitutude more violence. And the place on earth with the higest average wind is Antartica.
I guess a heated pot is not a good approximation for a planetary weather system. So - no - I don't really buy the higher temperature = more violence meme. Nor the 'once in a lifetime' crap the media regularly dishes out.
> I might add to that a natural volcano eruption produces so much CO2, that our silly civilization cannot produce in a half a century.
http://www.bgs.ac.uk/downloads/start.cfm?id=432
Every volcano on earth put together releases 1% as much CO2 per year as humans do.
I prefer to believe that you were quoting a source you trusted, rather than deliberately trying to cloud the issue. Now you know something important about that source's trustworthiness. Reason from there to an assessment of that source's motives.
But in fact 18000 did die,
Every July, I dress up in my Red, White, and Blue and tell people about the ATTACK on this country by H5N1! The flue hates our Freedom!
They ask, "How can Flu hate our Freedom!"
And I respond, "it's because we're Free!"
If that's true, they say and it was about Freedom, then why didn't the Flu attack Sweden?! I say, "IT DID! That's how treacherous it is!
I've protested! And no one pays attention, but we wake up and find our nation ruled by the law of the Flu, they'll wake up! They sure will!
> It'll also give us time to weed out alternate explanations for the perceived global warming such as changes in solar activity, orbital configuration, or other non-anthropogenic possibilities.
What's an example of one that's not already been weeded out?
Solar output has been measured by satellite since 1978, http://earthobservatory.nasa.gov/Features/ACRIMIII/Images/solar_irradiance_right.gif. Orbit cycles have been understood for a long time.
Ice melting is a positive feedback mechanism. Less ice means less reflection, which means more heat gain, which means less ice.
Underestimating ice melting would mean underestimating temperature increases.
According to the Mauna Loa Observatory we passed 350 ppm annual average CO2 in 1990. Next April we're scheduled for our first 400 ppm observation and five years later our last under 400 ppm observation if trends continue. Since there's no way anybody's going to reverse the trend before then, 400 ppm is not an achievable target. 450 ppm isn't even an achievable goal. 500 might be doable - that's a 60 year target.
Help stamp out iliturcy.
I think your numbers are a bit off. According to Wikipedia distribution of the greenhouse effect among the important greenhouse gases is:
Water Vapor:-----36-70%
Carbon Dioxide:---9-26%
Methane:-------------4-9%
Ozone:----------------3-7%
Clouds also have an effect that is thought to be slightly positive overall. Clouds of course are highly correlated with water vapor.
The reason the numbers have such a wide spread is that the level of water vapor is quite variable and as humidity drops the other GHG's become more important.
That sounds like typical denialist diversion. We DO know that adding heat to a fluid body does increase motion. Not buying "higher temperature = more vigourous" motion is denying thermodynamics. Care to posit an alternative theory?
100 year storm baselines are affected by warming (more energy), but other factors as well.
A 100-year flood often refers to the expected frequency of water accumulation in an area
from some, often-outdated, baseline calculations. As land is developed and natural permeable
surfaces are converted to black and green asphalt (the latter is also known as grass), the rate
of accumulation changes, magnifying the effects of stroms. Similar effects can be seen in heat
waves and wind strength.
Were that I say, pancakes?
That fails to explain why there are colder outer planets with significant atmosphere that have orders of magnitutude more violence.
Lol wut? The atmospheres of the outer, "colder" planets are quite unlike those of the Earth. A lot of factors can explain the "more violent" weather -- composition, energy, tidal effects from massive satellites, energy output from the planet involved (Jupiter outputs much more energy than it gets from the Sun), effects due to faster rotation, etc -- the outer, "colder" planets' atmospheres are nothing like that of the Earth.
Anyways, yours is a non-argument -- "hotter" and "more violence" in this context are only meaningful when talking about Earth, we're comparing "relative" violence of the same atmosphere, not some absolute "violence" measure valid across all bodies of fluid that wrap a planet.
Clouds of course are highly correlated with water vapor.
As opposed to what? Peanut Butter? Next you'll tell me rain is highly correlated to liquid water.
Natural, or backgrounds levels of greenhouse gases are what keep the planet habitable.
Otherwise the Earth would be like the Moon. This does not mean that small perterbations
are welcome or without effect. The climate is a chaotic system with many meta-stablestates.
Were that I say, pancakes?
Just want to point this out...
Since the arctic sea ice is floating in the ocean, it must already be displacing it's own weight (and volume) of water. (See Archimedes)
So when sea ice melts, it wouldn't cause sea levels to rise. Of course the impact on the arctic environment is another issue. Also, this doesn't apply to Greenland or Antartica, where the ice is on land. If that melted, it would have an impact on sea levels.
Clouds generally won't form when the relative humidity is less than 100%. That's their correlation to water vapor. Clouds and water vapor are two different things when it comes to their greenhouse effects though.
That fails to explain why there are colder outer planets with significant atmosphere that have orders of magnitutude more violence. And the place on earth with the higest average wind is Antartica [sic].
Comparing the weather systems between Earth and say Jupiter/Saturn is like comparing apples to oran ^C ^C ^C ^C elephants. Different atmospheric composition. Different gravitation. They are gas giants. Their atmospheres are very deep. The chemicals in their atmospheres have different latent heats of vaporization than those on Earth. The main driver of weather phenomenon on Earth such as hurricanes is the condensation of water vapor, which is by mass a relatively small percentage of the Earth's atmosphere. I would speculate that on Jupiter or Saturn, you have chemicals condensing in storms that compose a very large percentage of the atmosphere (by mass). This alone would result in far more violent weather.
Honestly, who feeds you this stuff? You make me want to change my sig to
"A problem with the self-esteem movement is that it encourages idiots to be proud of their opinions."
But I like my current sig better.
This and no other is the root from which a tyrant springs; when first he appears as a protector - Plato (423 to 327 BC)
I have the feeling that all these arguments are just distractions from the fact that everything has to change. It doesn't matter how much carbon can't be sequestered by the current rates of logging, if the whole world did the same as western society our forests would be decimated. It doesn't matter how much greenhouse gases are put out by our cars, just the resources required to supply the whole world would eliminate our resources. It doesn't matter how much methane cows give off, if everybody ate meat like the States all of our fresh water supply and arable land would be contaminated and barren.
None of it matters, it's just skating around the issue that the way we live is unsustainable, but we somehow feel ok with it because only we are doing it and not the whole world. How long are we going to let our own greed and fear of change prevent us from tackling the big picture and not having snot fights over the tiny little details?
Don't complain about syntax, grammar, or spelling. There is no.hell like input on android.
Of course it fails to explain many things. There are numerous other variables in play. "All other things being equal" is generally implied, and is certainly not the case with your examples.
Other planets: Different gasses, vastly different masses of atmosphere, vastly different gravity. Also, don't mistake windspeed for violence / chaos.
Antarctica: There's no foliage or water for friction. It's mostly topographically very flat due to ice build-up. It's at high altitude. Convection is most active at the extremes of a system.
Yes, if you take a simplistic glance at a complex system you're likely to perceive anomalies (the brain's geared toward finding em), but if you mistake your simple glance for something worthy of propping up an opinion (ie, I don't really buy...) that contradicts the vast majority of those (climatologists) that study said system, you're crazy.
You agree with me.
the earth is getting warmer because
1. manmade effects
2. natural effects
which is the right answer?
well, i know a better answer: who cares?
the point is, it's getting warmer. who or what is to blame? once you find blame, do you solve the problem? no, the earth is still getting warmer
we are homo sapiens. we don't grow fur. we kill herbivores and wear their fur. we don't find caves, we cut up peat moss and build huts. meaning: we don't adapt to our environment, we adapt our environment to us. in this way, we have conquered the world
now we face the spectre of losing crop land and shoreline due to climate change. we did it? nother nature did it? who cares! we do what we do: we COOL THE EARTH, because we don't want it to get warm
stop with the politician's effort of blame alloting. start with the engineer's effort of just solving the fucking problem
for the left: we are going to mess with the earth, seed the ocean with iron, etc. stop with your hand wringing. we are going to put our hands on the global thermostat and turn it down, and we're going to do it with science, and we are going to mess with the earth in dramatic ways. "oh no! you have to worry about unforeseen-" shut the fuck up. we already are messing with the planet in dramatic ways, so get over it, and get with the program of fixing the problem
for the right: you're going to pay for this in your taxes. don't like that? well, you can pay for it in destroyed coastlines and desert crop land. how do you like that genius? stop being such shortsighted greedy idiots and cough up some fucking dough to save the only home we have. it's YOUR problem, and we solve the problem as a COMMUNITY, individual action has no meaning here. contribute what you owe to maintain your home, assholes
intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
There can be no doubt about the science, when so many experts agree. What's the point anyway in their childish insistence that predictions must be accurate. After all, this is a complex system those scientists are dealing with. I mean, hell, we don't even really understand how the ice ages came about or what exactly happened to the Sahara in the last couple of thousand years. We don't even know what the weather will be like next Sunday.
You can't really expect those scientists to get everything exactly right the first time, they are scientists, they can't do miracles. And besides, science is changing all the time - it's nothing unusual.
Firewood is a renewable resource. It just takes a lot of land to grow enough trees to heat a house, and there are more economical ways to use the fuel.
Geothermal should be good for some of the energy. Accelerating transfer of heat from the planet's core to the atmosphere will help radiate off that heat. If we need to, we can paint the planet white with airdrops of aluminum oxide. Algae fuels trap carbon temporarily. There are some other things we can do. Not that it matters.
There are almost 7 billion of us now (according to this 6,955,578,309 at this writing, 7 billion this year). 43 years ago it was half as many, and 55 years prior it was half of that. Continuing this trend, it was it was 1780 - about 230 years ago, or 120 years for another halving. Do you see where the steps get longer the further you go back? Some of the acceleration in growth rate is medicine, some is energy science, some is transportation. Science is killing us by allowing a yeast-growth law. If we had universal free power with perfect conversion, we'd find a way to get to 14 billion in 35 years and 28 billion in 60. Imagine that... 2071: some of my children are still alive and the world has 28 billion people in it. Yes, I know - the UN expects the accelerating growth trend of the last thousand years to suddenly reverse direction, much like the WP7 team expects their fortunes to turn around - for no discernable reason. I believe the UN estimates wrongly include many bilions of people starving to death, and I think we'll prevent that for the most part with humanitarian efforts, though of course many will die by famine where inserting food by force isn't feasible due to determined armed opposition.
By 2071 we'll be out of oil of course, having even tapped the arctic and antarctic reserves. We'll be digging out the last of the coal having doubled, redoubled and re-redoubled those efforts, and global climate will be at least 3C above present - which means British summers will be pleasant but the winters still intolerable, larger swaths of Africa and southern India will be uninhabitable but Frazier Island will be a destination resort. (Nonseq: that bay looks like a crater to me.) We'll have surrendered to gene mod crops and nuclear power, so vast swaths of the Earth will be unihabitable due to grey goo and nuclear meltdowns. Thermodynamics being what they are the Greenland and Antarctic ice sheets will be irreversibly melting, but it will still be a long time before they do melt and raise the level of the sea and vanishing Florida beneath the waves. Ice is not a great thermoconductor, so outer layers of ice delay the eventual flood that will come. Plenty of time for folks to move inland. Of course if you do the math by then the US National Debt is $4 quadrillion at least, and some models escape to infinity which obviously can't happen (can it?)
The world had 1.5 billion people when my great-grandmother was born, and I knew her. My eldest grandson is two years old. If the current trend continues my youngest great-grandson will die amongst a crowd of over 200 billion humans. Assuming: my youngest daughter is 5 now, and will have a child at 35 as her mother did (2041), and that youngest grandchild will have a child at 35 (2076) also that brings us to 65 years hence, or 2076 born and 84 years of life (assumes a lack of medical advances) gives the year 2161 to naturally pass on. It would take several medical miracles to allow me to meet this great-grandchild, but those are expected. On the current trend 200 billion world population is a fairly conservative estimate for 2161. But of course the current trend can't continue unless the future brings something I don't know about.
I used to worry a lot about this stuff - but you know what? In the longer view these problems solve themselves. We're fortunate
Help stamp out iliturcy.
How dare they suggest that sea ice may be thinning four times faster than predicted? That's anti-American!
Sure, only an uneducated moron could think of linking daily (fluctuating) wind patterns and long-term (alegedly boiling) climate patterns, while an intelligent human being (which can obviously only be yourself) knows that there could be no relation whatsoever between the two, in roughly the same way as only a moron could link drops of water and rivers :-)
So, yes, your analogy is correct, as far as your bias goes : apples fall, exhibiting the same behaviour as last couple of years' (solar cycle #24-linked) temperatures; 747 fly, exhibiting the same behaviour as long-term predictions of the mathematically chaotic system called climate.
But, hey, who am I to argue : scientists are living in a very different world than you and I, and don't need to please their money-givers, and wouldn't care less what's the intended result for their ongoing research (and subsequent research money); ergo, they publish their findings, irrelevant of wether it soothes or bites the hand that feed them, no ?
-- ... here is the starting point for a reasoned and objective scientific analysis of the facts ...
Obligatory quote from Al Gore : "climate sceptics ought to be shot"
I cant believe in 2011 there are still people out there that believe global warning and that if we pay money to companies gore is invested in we will be saved, lol.
Get back to me when you "The Scientist" have an answer and not a Maybe..
For now it sounds like more scare mongering to justify a multi billion dollar Cap And Trade market.
In large natural systems that have existed for billions of years there exists a mechanism to keep things in balance.
The more you try to push it out of balance the more it takes to keep it there.
The Man Made Global Warming Catastrophe theorists would have you believe we are like a cart at the top of a hill.
EG - if we push to far, all of the sudden we accelerate into oblivion.
Natural laws says we are more like a cart at the bottom of the valley.
We're so self-important. So self-important. Everybody's going to save something now. "Save the trees, save the bees, save the whales, save those snails." And the greatest arrogance of all: save the planet. What? Are these fucking people kidding me? Save the planet, we don't even know how to take care of ourselves yet. We haven't learned how to care for one another, we're gonna save the fucking planet? I'm getting tired of that shit. Tired of that shit. I'm tired of fucking Earth Day, I'm tired of these self-righteous environmentalists, these white, bourgeois liberals who think the only thing wrong with this country is there aren't enough bicycle paths. People trying to make the world save for their Volvos. Besides, environmentalists don't give a shit about the planet. They don't care about the planet. Not in the abstract they don't. Not in the abstract they don't. You know what they're interested in? A clean place to live. Their own habitat. They're worried that some day in the future, they might be personally inconvenienced. Narrow, unenlightened self-interest doesn't impress me.
Besides, there is nothing wrong with the planet. Nothing wrong with the planet. The planet is fine. The PEOPLE are fucked. Difference. Difference. The planet is fine. Compared to the people, the planet is doing great. Been here four and a half billion years. Did you ever think about the arithmetic? The planet has been here four and a half billion years. We've been here, what, a hundred thousand? Maybe two hundred thousand? And we've only been engaged in heavy industry for a little over two hundred years. Two hundred years versus four and a half billion. And we have the CONCEIT to think that somehow we're a threat? That somehow we're gonna put in jeopardy this beautiful little blue-green ball that's just a-floatin' around the sun?
The planet has been through a lot worse than us. Been through all kinds of things worse than us. Been through earthquakes, volcanoes, plate tectonics, continental drift, solar flares, sun spots, magnetic storms, the magnetic reversal of the poles...hundreds of thousands of years of bombardment by comets and asteroids and meteors, worldwide floods, tidal waves, worldwide fires, erosion, cosmic rays, recurring ice ages...And we think some plastic bags, and some aluminum cans are going to make a difference? The planet...the planet...the planet isn't going anywhere. WE ARE!
We're going away. Pack your shit, folks. We're going away. And we won't leave much of a trace, either. Thank God for that. Maybe a little styrofoam. Maybe. A little styrofoam. The planet'll be here and we'll be long gone. Just another failed mutation. Just another closed-end biological mistake. An evolutionary cul-de-sac. The planet'll shake us off like a bad case of fleas. A surface nuisance.
You wanna know how the planet's doing? Ask those people at Pompeii, who are frozen into position from volcanic ash, how the planet's doing. You wanna know if the planet's all right, ask those people in Mexico City or Armenia or a hundred other places buried under thousands of tons of earthquake rubble, if they feel like a threat to the planet this week. Or how about those people in Kilowaia, Hawaii, who built their homes right next to an active volcano, and then wonder why they have lava in the living room.
The planet will be here for a long, long, LONG time after we're gone, and it will heal itself, it will cleanse itself, 'cause that's what it does. It's a self-correcting system. The air and the water will recover, the earth will be renewed, and if it's true that plastic is not degradable, well, the planet will simply incorporate plastic into a new pardigm: the earth plus plastic. The earth doesn't share our prejudice towards plastic. Plastic came out of the earth. The earth probably sees plastic as just another one of its children. Could be the only reason the earth allowed us to be spawned from it in the first place. It wanted plastic for itself. Didn't know how to make it. Needed us. Could be the answer to our age-old egocentr
Atlas Shrugged : Thematic Story
at one time there were Glaciers all the way down into Texas, they didn't disappear because the dinosaurs were driving SUVs
Thanks to file sharing, I purchase more CDs
Thanks to the RIAA, I buy them used...
There is a bit of a game each year as people speculate how low the arctic sea ice extent will go. The three measures are volume, area, and extent. It looks like we are certainly poised to break the previous record for volume, likely to break it for area, and may possibly break the previous record for extent.
A simple quadratic trend on the available data predicts that we may have an ice free September later this decade: http://neven1.typepad.com/blog/2011/05/piomas-april-2011.html.
Arctic ice minimum volume averaged 16500 km^3 between the late '70s to early 90's. We are now down to below 4500 km^3 and dropping fast.
The arctic ice acts as a buffer against global warming. The sea ice reflects 80% of incoming solar radiation back into space whereas open ocean will absorb about 90%. As the ice melts we could see accelerated global warming.
The good news is that the retreating ice may expose vast new oil resources.
Now, give me funding or else your children will be raped to death by walruses.
If you were blocking sigs, you wouldn't have to read this.
Don't worry, some idiot on the internet told me it's all nonsense and everything's fine! Keep the walrus lube though, it's good for all manner of unwanted sexual congress with marine mammals.
If you think someone isn't free to have a different definition of "freedom" you may be a tyrant.