Ruh Roh No Arctic Heating even after 1000 years of CO2

Discussion in 'Environment' started by westwall, May 21, 2010.

  1. westwall
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    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

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  2. Oddball
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  3. BolshevikHunter
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    Yeah, They just had the coldest Winter ever recorded in some Eastern and SOUTHERN states and these nutcases are still crying about Global Warming. Al Gore just purhased himself another huge Mansion next door to Dennis Miller. I wonder how much polluted power it takes to run this one? LOL!!! = Fraud! ~BH
     
  4. Old Rocks
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    Now who should I believe, that blog, or the people that actually study the arctic?

    Access : Vertical structure of recent Arctic warming : Nature


    Vertical structure of recent Arctic warming
    Rune G. Graversen1, Thorsten Mauritsen1, Michael Tjernström1, Erland Källén1 & Gunilla Svensson1

    Department of Meteorology, Stockholm University, S-106 91 Stockholm, Sweden
    Correspondence to: Rune G. Graversen1 Correspondence and requests for materials should be addressed to R.G.G. (Email: rune@misu.su.se).


    Top of pageAbstractNear-surface warming in the Arctic has been almost twice as large as the global average over recent decades1, 2, 3, 4, 5—a phenomenon that is known as the ‘Arctic amplification’. The underlying causes of this temperature amplification remain uncertain. The reduction in snow and ice cover that has occurred over recent decades6, 7 may have played a role5, 8. Climate model experiments indicate that when global temperature rises, Arctic snow and ice cover retreats, causing excessive polar warming9, 10, 11. Reduction of the snow and ice cover causes albedo changes, and increased refreezing of sea ice during the cold season and decreases in sea-ice thickness both increase heat flux from the ocean to the atmosphere. Changes in oceanic and atmospheric circulation, as well as cloud cover, have also been proposed to cause Arctic temperature amplification12, 13, 14, 15, 16, 17. Here we examine the vertical structure of temperature change in the Arctic during the late twentieth century using reanalysis data. We find evidence for temperature amplification well above the surface. Snow and ice feedbacks cannot be the main cause of the warming aloft during the greater part of the year, because these feedbacks are expected to primarily affect temperatures in the lowermost part of the atmosphere, resulting in a pattern of warming that we only observe in spring. A significant proportion of the observed temperature amplification must therefore be explained by mechanisms that induce warming above the lowermost part of the atmosphere. We regress the Arctic temperature field on the atmospheric energy transport into the Arctic and find that, in the summer half-year, a significant proportion of the vertical structure of warming can be explained by changes in this variable. We conclude that changes in atmospheric heat transport may be an important cause of the recent Arctic temperature amplification.
     
  5. Old Rocks
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    Sea Ice Loss Accelerates Arctic Warming: Scientific American

    Melting sea ice has accelerated warming in the Arctic, which in recent decades has warmed twice as quickly as the global average, according to a new study.

    "The findings reinforce suggestions that strong positive ice-temperature feedbacks have emerged in the Arctic, increasing the changes of further rapid warming and sea ice loss," concludes the research published yesterday by the journal Nature.

    The work by James Screen and Ian Simmonds at Australia's University of Melbourne echoes earlier studies that identified the same basic feedback loop.

    The feedback loop begins with warmer Arctic springs and summers, which cause more sea ice to melt each summer.

    That widespread melting leaves huge swaths of dark ocean water that absorbs more heat from the sun than the white, reflective sea ice it replaces. And that heat appears to be cycling back into the atmosphere each fall, when the amount of sunlight dips and sea ice re-forms.
     
  6. Old Rocks
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    Well, fruitcake, this is what the global temperatures have been so far this year.

    NASA: Easily the hottest April — and hottest Jan-April — in temperature record Climate Progress

    It was the hottest April on record in the NASA dataset. More significantly, following fast on the heels of the hottest March and hottest Jan-Feb-March on record, it’s also the hottest Jan-Feb-March-April on record [click on figure to enlarge].

    The record temperatures we’re seeing now are especially impressive because we’ve been in “the deepest solar minimum in nearly a century.” It now appears to be over. It’s just hard to stop the march of manmade global warming, well, other than by reducing greenhouse gas emissions, that is.

    Most significantly, NASA’s March prediction has come true: “It is nearly certain that a new record 12-month global temperature will be set in 2010.″

    Software engineer (and former machinist mate in the US Navy) Timothy Chase put together a spreadsheet using the data from NASA’s Goddard Institute for Space Studies (click here). In NASA’s dataset, the 12-month running average temperature record was actually just barely set in March — and then easily set in April.

    Actually, NASA first made its prediction back in January 2009:


    Given our expectation of the next El Niño beginning in 2009 or 2010, it still seems likely that a new global temperature record will be set within the next 1-2 years, despite the moderate negative effect of the reduced solar irradiance.”
     
  7. westwall
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    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

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    See multiple threads dealing with picking temp stations that agree with what you want. We just got another inch of snow here in NEVADA!
     
  8. elvis
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    elvis BANNED Supporting Member

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    you post left-wing environut blogs all the time, dumbfuck.
     
  9. westwall
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    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

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    Oh no his blogs are OK 'cause they agree with him don't you see. He is all about "fairness"
    so long as it's more fair for him.
     

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