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Another Study Finds Earth's CO2 Emissions Have Flattened Over The Last Three Years (go.com)

An anonymous reader quotes the Associated Press: Worldwide emissions of heat-trapping carbon dioxide have flattened out in the past three years, a new study showed Monday, raising hopes that the world is nearing a turning point in the fight against climate change. However, the authors of the study cautioned it's unclear whether the slowdown in CO2 emissions, mainly caused by declining coal use in China, is a permanent trend or a temporary blip...

The study, published in the journal Earth System Science Data, says global CO2 emissions from fossil fuels and industry is projected to grow by just 0.2 percent this year. That would mean emissions have leveled off at about 36 billion metric tons in the past three years even though the world economy has expanded, suggesting the historical bonds between economic gains and emissions growth may have been severed. "This could be the turning point we have hoped for," said David Ray, a professor of carbon management at the University of Edinburgh, who was not involved with the study. "To tackle climate change those bonds must be broken and here we have the first signs that they are at least starting to loosen."

Last week a study suggested earth's plant life is absorbing a greater percentage of global CO2 emissions -- although reductions in China could also be significant. According to the article, almost 30% of the world's carbon emissions come from China.

39 of 201 comments (clear)

  1. Too early to celebrate by arth1 · · Score: 5, Insightful

    That the rate increase is going down isn't good enough, alas. That means it's still increasing. We need a reversal, with less CO2 pumped out than what is absorbed, and we're nowhere near that yet.

    Still, it's a good first sign, but we're still getting worse, not better.

    1. Re:Too early to celebrate by hughbar · · Score: 5, Insightful

      Agree, but, for example, methane (MOO!) is a more potent greenhouse gas and (another poster has partially said it) we're pumping all kinds of random shit into the air all the time.

      So my feeling is that we need to 'clean up our act' very generally as a philosophy, rather than concentrate only on C02. And yes, cheap solar/wind is turning out to be very important. But we need car-free cities as well.

      --
      On y va, qui mal y pense!
  2. cost by dehachel12 · · Score: 5, Informative

    A big factor is of course the cost of solar and wind, which are now already cheaper than coal and oil, even without subsidies.

    1. Re:cost by dehachel12 · · Score: 2

      >th in the best solution of the lot, Nuclear.
      Is it? It has always been touted as being very,very cheap, but it never was. And the reason is very simple: every nuclear power plant you build is one of a kind, which raises cost to build it immensely, while turbine and panels are coming of an assembly line.

    2. Re:cost by allcoolnameswheretak · · Score: 4, Insightful

      Is it? It has always been touted as being very,very cheap, but it never was.

      And I am sure the nuclear industry didn't factor in the long-term costs of how to store away the nuclear waste safely, for generations. Or the costs of dismantling a plant. Or of course the costs when something bad happens. 100 billion $ total cost of Fukushima disaster.

    3. Re:cost by Jack9 · · Score: 2, Interesting

      > every nuclear power plant you build is one of a kind

      That's a United States problem. France uses a template. Bad policy tends to stick around, just like any statistical disaster...which leads me to my problem with nuclear power. It's set up and run by humans.

      Yes you can generate power very cheaply for a few decades, but it ruins the site for a couple hundred years. Long term, it doesn't work out either. Now, if there is an accident (over what time period, how many will there be?) you end up contaminating more than just the site (fukishima, chernobyl).

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    4. Re:cost by Kiuas · · Score: 2

      If that were true that they were cheaper everyone would be figuratively storming the gates to use wind/solar, the wind/solar equipment makers couldn't keep the stuff on the shelves, and they'd be abandoning other generation means within a couple years because they'd make more money.

      Well, no, that's not quite the case. Onshore wind is already cheaper than coal, and photovoltaic solar energy is essentially pretty much at even when it comes to the costs of a more advanced/modern coal power.

      The reason the rush to these forms is not yet happening is that the the big issue with renewables is load-balancing. That is, since wind/solar generation is erratic and depends on the time of day/year, it means that a grid ran primarily using these forms cannot easily answer to increased demand. This is why at the moment with current grids, the efficient way to ditch fossil fuel's is to use a combination of renewables with nuclear, which is also on par or cheaper to coal and can be used to provide additional energy when the renewables don't produce enough.

      The danger is that if the share of renewables is increased but nuclear is left out, the additional demand needs to be met with fossil fuels. This in fact is happening in places like germany where the well-intentioned but shortsighted Green party has put a ban on new nuclear power plants and they're driving the existing ones down. So despite the amount of renewable capacity going up, CO2 emissions are also going up because nuclear output is coming down and is being supplemented by coal-plants.

      --
      "It is the business of the future to be dangerous" -Alfred North Whitehead
    5. Re:cost by Kiuas · · Score: 2, Interesting

      Sorry, but I have no faith in numbers from Wiki or the LCOE they cite, and further, they include TCO figures for wind/solar that are largely based on speculation and guesswork

      Erhm.

      he following data are from the Energy Information Administration's (EIA) Annual Energy Outlook released in 2015 (AEO2015). They are in dollars per megawatt-hour (2013 USD/MWh). These figures are estimates for plants going into service in 2020.[55] The LCOE below is calculated based off a 30-year recovery period using a real after tax weighted average cost of capital (WACC) of 6.1%. For carbon intensive technologies 3 percentage points are added to the WACC. (This is approximately equivalent fee of $15 per metric ton of carbon dioxide CO2)

      Link to the report itself.
      So, what, exactly is wrong with this? I mean, oil prices are subsidized by themselves by most oil producing countries.

      EA estimates reveal that fossil-fuel subsidies are becoming increasingly concentrated in the major oil- and gas-exporting countries. The share of Middle East oil exporters, for example, in the world total has risen from 35% to 40% over the last four years. The main reason for this trend is that high oil prices over much of the period meant that they, as net oil exporters, did not have the same fiscal incentive to reform energy pricing as that in many other parts of the world. Instead, the rise in government revenues from oil exports allowed an increase in government spending, often on social support programmes, expanding infrastructure and subsidies to food and energy. Over the period 2009-2014, fossil-fuel subsidies for this group of countries have, on average, been equivalent to more than one-quarter of government expenditure.

      Soi why would it be wrong to factor in the tax-breaks and susidies given to renewables, when the point of comparison in terms of fossil fuels is also heavily subsidized by producing nations and the environmental damage caused by oil/coal means that the true cost of using these fuels is in fact externalized because there's a delay between using fossil fuel's and seeing the effect of the usage in the climate and thus the global economy?

      The inclusion of subsidies does not make the price comparisons invalid, it makes them more accurate. Unless you want to start to calculate the actual, unsubsidized cost of oil/coal as well.

      --
      "It is the business of the future to be dangerous" -Alfred North Whitehead
    6. Re:cost by Anonymous Coward · · Score: 3, Insightful

      No you dont " ruins the site for a couple hundred years" here is a list of dissmantled nuclear powerplants and as you can see it did NOT take 100+ years to release the sites https://en.wikipedia.org/wiki/Nuclear_decommissioning

      as for accidents, chernobyl will never happen again, fukushima contaminated a very small area (yes small) and the contamination will be gone in 30-40 years.

      The fact is that nuclear power is magnitudes better than fosil fuels from a health point of view.

      se:http://www.nextbigfuture.com/2011/03/lifetime-deaths-per-twh-from-energy.html

    7. Re:cost by Joce640k · · Score: 2

      And don't forget that burning fossil fuels releases a whole lot of radiation into the air.

      https://en.wikipedia.org/wiki/...

      And mercury.

      https://en.wikipedia.org/wiki/...

      And a whole lot of other undesirables apart from CO2.

      https://en.wikipedia.org/wiki/...

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    8. Re:cost by hey! · · Score: 2

      While I'm optimistic about the thorium fuel cycle, it won't be the best solution to our future energy needs. The best solution will be getting our energy from a mix of carbon neutral sources. Plus greater efficiency, of course.

      Every means of generating energy is going to have marginal costs that increase with scale, and that includes nuclear. Putting all our energy eggs in the nuclear basket has several undesirable consequences that are more manageable if nuclear is just a contributor. First there's the massive future spike decommissioning and waste disposal costs that you're setting up if you go in for a crash program. There's the problem of what uranium prices will do and their effects will be on political stability. You can look at the global effect instability in the Middle East has as an example of what happens when one commodity becomes utterly critical to economic survival. Uranium of course wouldn't be used up immediately like oil, but control of a country's uranium supply will be tantamount to control of that country's ability to grow its economy.

      On the other hand steady increase in nuclear generation over two or three generations doesn't come with a sudden spike in costs; it allows us to develop decommissioning and disposal technology gradually, or to reduce the nuclear contribution to the mix if those things prove impractical.

      So the best way to generate more energy from an environmental and international stability standpoint is to tap a number of sources of energy sources. And to make that practical, we need (a) vastly improved electricity distribution technology and (b) better and more ubiquitous battery technology.

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    9. Re:cost by cbeaudry · · Score: 2, Informative

      All power plants, all over the world, have a strong history of incidents. Because they are major undertakings and they generate... POWER.

      The French incidents have had no fatalities and have been dealt with efficiently.

      https://en.wikipedia.org/wiki/...

      In fact, there are very few, historically, nuclear incidents with fatalities. Not so with ANY other power generating technologies, including solar and especially Wind.

  3. Slowing isn't enough - with a graph. by queazocotal · · Score: 4, Informative

    http://www.climatecentral.org/... contains the graph
    http://assets.climatecentral.o...

    This shows the rise in the CO2 level in the atmosphere over the last 5 years.
    For over a year now, it's been over 400ppm, and the rise in 2015-16, over the same period the year before has been the largest this past year than any time in the last five years.

    1. Re:Slowing isn't enough - with a graph. by locofungus · · Score: 5, Interesting

      Tamino doesn't see evidence of a slowdown:

      https://tamino.wordpress.com/2...

      --
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    2. Re:Slowing isn't enough - with a graph. by Alwin+Henseler · · Score: 2, Insightful

      CO2 in the atmosphere, and the world's CO2 output over a year, isn't the same thing. They're correlated, but with a long delay (in the order of decades or longer IIRC). The atmosphere itself, oceans, forests etc all act like buffers. So if the world (read: mankind's) CO2 output would drop to 0 instantly, CO2 in the atmosphere will stay high for a long time no matter what. Adding more CO2 just makes the problem worse. So a more accurate way is saying that the rate at which we're making the problem worse, has slowed down / flattened. We're still running, and still in the opposite direction of where we should be going, just our [running in the wrong direction] has slowed down.

      Once atmospheric CO2 (and with that, average global temperatures) passes certain levels, all kinds of secondary effects may kick in: melting of permafrost areas, melting of oceanic methane ice (yeah I know not CO2 but still caused & contributing to same problem), forest fires due to extended droughts, etc, etc.

    3. Re:Slowing isn't enough - with a graph. by silentcoder · · Score: 2

      Humanity didn't exist 5 million or a hundred million years ago -our kind of society could not have existed then and would not survive such a change now (and since those climates changed very slowly - at the timeline we're talking about, it's a mass extinction event for most creatures which BY ITSELF could cause OUR extinction since we probably cannot survive independently of other animals - we evolved for a world with them in it).

      But that's unlikely since our society will collapse long before we get there. Fear of a few hundred thousand refugees just made America elect the least qualified president in history upsetting global stability probably for decades to come. Imagine what a few BILLION refugees would mean ?

      We don't even need climate change to kill anybody to destroy civlization. It just needs to make enough people hungry that they start running away to somewhere else. The social upheaval will do the rest, and much like the zombie appocalypse the REAL danger will be other people.

      We'll adapt ? Sure, the same way we've ALWAYS adapted to significant shifts in climate: with massive wars and bloodshed. Only those were regional... this will be global.
      Yeah... maybe we should try NOT to cause that future ?

      --
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  4. Re:Also too early to spend trillions of dollars by Alain+Williams · · Score: 3, Insightful

    So why did the UK & USA go to war in Iraq on the basis of chasing weapons of mass destruction that probably did not exist at a cost of some $1.1 trillion? Answer: because it suited other goals that politicians wanted. So: today politicians are chasing short term goals and keeping their eyes shut tight to the probable huge long term consequences of not dealing with climate change.

  5. Re:Also too early to spend trillions of dollars by mwvdlee · · Score: 4, Informative

    Seriously?

    The problem exists.
    The models aren't failing.
    There is scientific consensus.

    The "good news" here is that the problem isn't worsening as fast as it used to.

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  6. Data from Mauna Loa Hawaii contradicts this report by Anonymous Coward · · Score: 3, Interesting

    http://www.esrl.noaa.gov/gmd/ccgg/trends/gr.html

    Last year broke the record with a growth rate over 3PPM / Year. Looking at this years monthly data, in 2016 we're on track to smash last year's record with somewhere around 3.5PPM / Year. Every year this decade has been at or above the average for previous decade. Rather than a levelling off, the data looks like continual growth.

    Confused as to how any report can be claiming a "levelling off". Mauna Loa is seen as the de-facto standard for global CO2 levels as it's in the middle of the pacific and therefore isolated from localised effects.

    https://en.wikipedia.org/wiki/Mauna_Loa_Observatory

  7. Well thank god.... by Feral+Nerd · · Score: 2, Funny

    Another Study Finds Earth's CO2 Emissions Have Flattened Over The Last Three Years

    I just heard that President Elect by popular vote, Donald Trump has pledged to fix this problem so you can all breathe easier now. The president is hard at work assembling a crack task force from among the ranks of Big Oil and Big Coal to bring CO2 emissions growth back on track.

  8. Re:Also too early to spend trillions of dollars by Anonymous Coward · · Score: 5, Informative

    CO2 does not cause warming. This has been shown to be a hoax.

    If you want to be extremely pedantic, CO2 does not cause warming, the sun does. And no molecule that doesn't undergo a reaction (either chemical or physical) causes any warming. But that's pushing it a bit too much.

    What a chemist will tell you is that CO2 or any molecule with three or more atoms has a scissoring motion that absorbs infrared wavelengths around the heat emissions that you can expect for a black body around the Earth's current temperature. So, rather than these emissions escaping towards outer space and having radiative cooling, you have them being partially absorbed by CO2 and other gases (water, methane, CFC gases and so on) and then emitted once again as the molecule relaxes to a more fundamental state. These emissions then happen in every direction, including back down to Earth, for a further chance at heating the planet. The important part here is the scissoring motion and the three atoms it needs. A diatomic molecule (oxygen, nitrogen, etc) will not cause this because the frequencies at which it absorbs energy are substantially different.

    How you can judge this as being a hoax, it's a mystery to me or anyone else with more than 2 brain cells.

  9. New administration says by paiute · · Score: 2

    Mission accomplished!

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  10. Re:Data from Mauna Loa Hawaii contradicts this rep by Anonymous Coward · · Score: 4, Informative

    They're not comparing the same thing (human emissions versus atmospheric levels).

  11. Re:Also too early to spend trillions of dollars by rally2xs · · Score: 2

    No, its 'cuz if we were wrong about WMD in Iraq, it was likely that Saddam, who hated our guts over Gulf War 1, would have given said WMD to terrorists who would have deployed it on our densest population centers, the east coast and California. An anthrax attack could have possibly killed a million people. Was it worth 5000 dead soldiers to prevent that for-sure? I dunno, whadda you think? I live on the east coast, BTW, but have, or at least had immunity to anthrax due to having traveled to Iraq a couple times to assist the US Army. But it wouldn't be any fun to wake up one day and find that 90% of the people in my area dead due to such an attack.

  12. Re:Also too early to spend trillions of dollars by Anonymous Coward · · Score: 5, Informative

    Probably did not exist?

    Oh except that we found stockpiles of said chemical weapons all over the country, troops were killed when they hit IED's made of chlorine rounds that we missed, and Syria who never had a known stockpile has been able to use Chemical weapons a few times, meaning the suspected export of unknown quantities of Chemical weapons during the run-up to the invasion occurred as feared.

    The only thing we did not find was an active production system but they had six months to dismantle and hide or ship such to Syria.

  13. Misleading headline (shock!) by Zoxed · · Score: 2

    Note that the (near) flat line is only for fossil-fuel derived CO2: not all human produced CO2, and certainly not all Earth produced !!

  14. Re:Also too early to spend trillions of dollars by jabuzz · · Score: 4, Insightful

    I would add that Gaddafi after seeing what happened in Iraqi decided to own up to a whole bunch of WMD that we basically didn't have a clue about and allowed them to be removed. It is highly unlikely this would have happened without the Iraqi invasion.

    The problem with the invasion of Iraqi was not the invasion itself but the utter lack of post invasion planning by Bush and his fellow bunch of morons.

  15. Re:Also too early to spend trillions of dollars by Rockoon · · Score: 2, Insightful

    How much has Gore made so far?

    --
    "His name was James Damore."
  16. Re:Also too early to spend trillions of dollars by Anonymous Coward · · Score: 5, Insightful

    It's fashionable to pretend that it was all based on bloodlust but for those of us who were alive at the time, it seemed like it was the right thing to do. The decision was made with the best information at the time and in retrospect it was a mistake.

    I was alive at the time, and it was a transparently stupid thing to do. It never looked like the right thing to do, and it was obvious before we even went in that it would spiral out of control. The administration sold it on lies and misinformation, and a lot of people bought it.

  17. But but but...consensus!!! by RogueWarrior65 · · Score: 2

    Which is almost as dumb as knowing the rules of the American electoral process, which have been in place for literally centuries, and then complaining when they don't like the results.

  18. Re:Earth Will Be Choking On C02 by GLMDesigns · · Score: 2

    Stop your FUD. It's ridiculous. Do you really think that Republicans want dirty water and pollution choked skies? Think about what you're saying. Opposition to the ham-handed EPA does not mean wanting to have toxic waste dumps leaching into ground water.

    You're giving yourself heart palpitations for no reasons. There are other, well-founded reasons, to be opposed to Trump. This is f00king retarded.

    #NeverTrump,
    #NeverHillary.
    Vote Third Party in 2016 and beyond.

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  19. Too early to celebrate because data is not there by Geoffrey.landis · · Score: 3, Informative

    It's too early to celebrate because the data really doesn't show this purported downturn yet. Here's the measured carbon dioxide in the atmosphere for the last five years:
    http://www.esrl.noaa.gov/gmd/c...
    And the full record:
    http://www.esrl.noaa.gov/gmd/c...

    If there's a recent downturn, I can't see it.

    (A different link graphing the same data: https://scripps.ucsd.edu/progr... )

    --
    http://www.geoffreylandis.com
  20. It wasn't all bad by Anonymous Coward · · Score: 2, Informative

    It's fashionable to pretend that it was all based on bloodlust but for those of us who were alive at the time, it seemed like it was the right thing to do. The decision was made with the best information at the time and in retrospect it was a mistake.

    I was alive at the time, and it was a transparently stupid thing to do. It never looked like the right thing to do, and it was obvious before we even went in that it would spiral out of control. The administration sold it on lies and misinformation, and a lot of people bought it.

    It's transparently stupid to declare anything as the obvious 'best' answer to Saddam era Iraq.

    Saddam's attempted genocide of the Kurdish people in his Al-Anfal campaign through the use of chemical weapons, massacres of villages with conventional weapons, concentration camps for the captured, mass graves for the captured males old enough to bear arms, and systematic rape of the women. The rape wasn't about punishment or intimidation but an attempt to impregnate the victims with half-Arab children and effectively breed the Kurds out of existence. The campaign is documented extensively as any really good genocide needs to be administered well to make sure it's thorough. Unfortunately for Saddam, plane loads of said records were captured in the first gulf war.

    Saddam left over a million dead in his war with Iran in which he again made absolutely extensive use of chemical and biological weapons.

    Saddam again tried to conquer a neighbour, this time seizing all of Kuwait, effectively reducing the number of existing UN member nations by 1.

    Saddam then waged another genocide, this time against Shia Iraqi's leaving hundreds of thousands dead.

    Saddam no longer rules Iraq and is now dead. That's not nothing and to say it's transparently obvious an Iraq under his rule would be a better world today is an insult to his victims.

  21. Re:Also too early to spend trillions of dollars by prisoner-of-enigma · · Score: 3, Funny

    You can't say that because it's racist, sexist, homophobic, xenophobic, evidence of white privilege, and means you hate puppies and want unicorns to die. You monster.

    --
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  22. Re:Also too early to spend trillions of dollars by prisoner-of-enigma · · Score: 2

    The administration sold it on lies and misinformation, and a lot of people bought it.

    Speaking as someone who was not only alive at the time but actively serving in the military at the time, you seem to forget Saddam himself was being conned by his own scientists who feared for their lives if they reported failure. Furthermore, the CIA believed they had WMD's, and the head of the CIA advised the Bush administration that WMD's were present.

    So here you are, the President, sitting in the Oval Office. You've got a murderous thug of a dictator, someone who has shown no compunction about using WMD's against his own people when it suits him. His own services report having WMD's. Your own intelligence services confidently say he has WMD's. What do you do? Ignore all that?

    Put this way, if you go to three different doctors and they all diagnose you with cancer, are you gonna say "nah, I feel fine, these guys don't know what they're talking about"? Or are you going to get treatment for cancer as if you actually HAVE cancer? And if afterwards when the chemo has made you sick as hell and all your hair falls out you discover you didn't really have cancer, are you going to blame yourself for making the decision to get treatment? Or are you going to blame those that wrongly advised you?

    Based on your above comments, you'd have to blame yourself and hold those who wrongly diagnosed you as completely innocent. Not that that makes any fucking sense, but that's what you're doing.

    --
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  23. Re:Also too early to spend trillions of dollars by LynnwoodRooster · · Score: 2

    Close to a quarter of a billion by 2013. Probably considerably more by now...

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  24. Re:Also too early to spend trillions of dollars by arth1 · · Score: 2

    There was and wasn't weapons of mass destruction in the middle east. Depending on you view of what mass destruction is.

    Well, the Israeli atomic bombs certainly should qualify.

  25. Re:Null hypothesis is rejected by Obfuscant · · Score: 2

    3. The warming rate does not fit the null-hypothesis ("anthropogenic gasses have no effect on global climate.")

    That is not actually the null hypothesis for the data currently being collected, since "greenhouse gas" and "anthropogenically sourced greenhouse gas" are not synonyms.

    To rule out the null hypothesis, you actually have to test based on that null hypothesis. That means removing all other potential causes and varying only the parameter under study. If you want to disprove the null hypothesis as you have stated it, you need to have two systems: one with AGG and one without. The one without is the control. Where is the control Earth?

    Without a control, you have correlation and not causation. Correlation is interesting. Causation is science. THAT'S how science works.

    And science tells us that since warming has happened without humans being around (according to the proxies we have for temperature) we KNOW for a fact that there can be other causes. Without a control to rule them out, we have nothing but correlations.

  26. Re:Null hypothesis is rejected by Obfuscant · · Score: 2

    The fact that you seem to be missing is that we have good measurements.

    We have reasonable measurements of concentration of CO2 and temperature. Not "good" since the sampling is very very sparse compared to the volume of the planetary atmosphere and area of the surface. We don't have measurements of "anthropogenic gasses" since that would require a huge amount of instrumentation at the sources. Yes, we also can measure isotope ratios in the samples we do have, and from that try to back out the sources of the gasses, but that's limited in scope.

    If you are proposing that some other input is accounting for the temperature increase, you need to identify that input .

    "We can't think of any other cause, so it must be X." That's not how science works.

    As for your other question, about paleoclimate

    I'm sorry, but I didn't ask a question about paleoclimate. I made a statement of fact.

    But just saying "the temperature has risen beforet" really isn't science.

    It is part of the scientific process when you know for a fact that the cause you are attempting to pin the blame for a current event on did not exist when similar things happened in the past. It proves beyond a shadow of a doubt that there can be other causes, the exclusion of which also requires a control Earth that isn't available.

    tell me what you are hypothesizing is the input factor that made it rise in the past,

    I'll tell you what. Read what I write and then stop at the end. Don't challenge me to provide answers for things I didn't say. That will save us all a lot of time.