The Danes say the Arctic is getting colder

Discussion in 'Environment' started by westwall, Jul 7, 2010.

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

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    • Thank You! Thank You! x 1
  2. Douger
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    Douger BANNED

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

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  4. Big Fitz
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    Big Fitz User Quit *****

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    Yes indeed, the warmist's are striking back as fast as they can. They must do damage control before the truth gets out.
     
  5. Charles_Main
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    Charles_Main AR15 Owner

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    Of course, anyone who does not agree with the warmers must work for Exxon or something right?

    What a bunch of lemmings.

    LOL
     
  6. Old Rocks
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    Old Rocks Diamond Member

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    Arctic Sea Ice News & Analysis

    July 6, 2010
    Rapid ice loss continues through June
    Average June ice extent was the lowest in the satellite data record, from 1979 to 2010. Arctic air temperatures were higher than normal, and Arctic sea ice continued to decline at a fast pace. June saw the return of the Arctic dipole anomaly, an atmospheric pressure pattern that contributed to the record sea ice loss in 2007.

    Figure 1. Arctic sea ice extent for June 2010 was 10.87 million square kilometers (4.20 million square miles). The magenta line shows the 1979 to 2000 median extent for that month. The black cross indicates the geographic North Pole. Sea Ice Index data. About the data.
    —Credit: National Snow and Ice Data Center

    High-resolution image Overview of conditions

    Arctic sea ice extent averaged 10.87 million square kilometers (4.20 million square miles) for the month of June, 1.29 million square kilometers (498,000 square miles) below the 1979 to 2000 average and 190,000 square kilometers (73,000 square miles) below the previous record low for the month of 11.06 million square kilometers (4.27 million square miles), set in 2006. In June, ice extent declined by 88,000 square kilometers (34,000 square miles) per day, more than 50% greater than the average rate of 53,000 square kilometers (20,000 square miles) per day. This rate of decline is the fastest measured for June.

    During June, ice extent was below average everywhere except in the East Greenland Sea, where it was near average.
     
  7. Old Rocks
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    Old Rocks Diamond Member

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    Sunny Skies over the Arctic in Late June 2010 : Image of the Day

    Recommend this image
    Clear skies in late June 2010 provided plenty of unfiltered sunlight to melt snow and ice in the Arctic. Arriving at roughly the same time as the Northern Hemisphere’s summer solstice, the conditions meant that unfiltered sunlight would reach the Arctic’s land and sea surfaces at a time of near round-the-clock daylight.
    This Arctic mosaic is composed from several passes of the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite on June 28, 2010. The brightest spot in the image is Greenland, covered in snowy white. West and north of Greenland, sea ice appears pale gray-blue. Clouds, some translucent and some opaque, occur throughout the scene, distinguished from sea ice by their lighter color, rougher texture, and less distinct margins. Clouds appear most prevalent north and west of Scandinavia, and between Alaska and the Russian Federation, but wide expanses of land and sea surface show through cloud-free areas. Most of the Arctic Circle (marked by a faint circle) is cloud-free.
    Temperatures in May and June were high, leading to an early onset of melting in June over much of the Arctic. Melting of snow and ice affects Arctic albedo in two ways. First, melt reduces sea ice cover, replacing mostly light-reflecting sea ice with mostly light-absorbing seawater. Second, melt changes dry snow to wet snow. Although it still has a high albedo compared to seawater, wet snow is darker than dry snow and consequently can absorb three times the solar energy.
     
  8. Old Rocks
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    Old Rocks Diamond Member

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    Arctic temperatures in the 20th century, modeled and observed - Maps and Graphics at UNEP/GRID-Arendal

    Arctic temperatures in the 20th century, modeled and observed. Observed Arctic winter land temperatures and IPCC model recreations for the 20th century. Note that although these model runs are able to capture the range of Arctic warm and cold periods, the timing of the peaks varies, suggesting that the early 20th century warming was due to random causes, while the increases at the end of the century shown by all the models supports CO2 as an external forcing of the Arctic climate system.

    Sources Wang, M., Overland, J.E., Kattsov, V., Walsh, J.E., Zhang, X. and Pavlova, T. (2007). Intrinsic versus forced variation in coupled climate model simulations over the Arctic during the 20th century. J. Climate, 20(6), 1093-1107
     
  9. Old Rocks
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    Old Rocks Diamond Member

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    AccuWeather.com - Climate Change | Arctic Climate even more Sensitive to Greenhouse Warming

    Using three independent methods of measuring the Pliocene temperatures on Ellesmere Island in Canada's high Arctic, the team's findings indicate that CO2 levels of approximately 400 parts per million are sufficient to produce mean annual temperatures in the High Arctic of approximately 0 degrees Celsius (32 degrees F). "As temperatures approach 0 degrees Celsius, it becomes exceedingly difficult to maintain permanent sea and glacial ice in the Arctic. Thus current levels of CO2 in the atmosphere of approximately 390 parts per million may be approaching a tipping point for irreversible ice-free conditions in the Arctic," according to Ashley Ballantyne of the University of Colorado.



    Today, Ellesmere Island is a polar desert that features tundra, permafrost, ice sheets, sparse vegetation and a few small mammals. Temperatures range from roughly minus 37 degrees F, or minus 38 degrees C, in winter to 48 degrees F, or 9 degrees C, in summer. The region is one of the coldest, driest environments on Earth, according to EurekAlert.

    According to Ballantyne, Arctic temperatures have risen by about 1.8 degrees F, or 1 degree C, in the past two decades in response to anthropogenic greenhouse warming, a trend expected to continue in the coming decades and centuries. Greenhouse gases in the atmosphere have risen from about 280 parts per million during the pre-industrial era on Earth to about 390 parts per million today.
     
  10. Old Rocks
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    Old Rocks Diamond Member

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    Well, June, 2010 may have been average wherever those people were, doesn't seem to be the cast according to many other scientistis.
     

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