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The first-ever study of air trapped in the deep snowpack of Greenland has yielded surprising results. Current computer models had predicted that levels of carbon monoxide locked into the snowpack would be higher than those recorded in the 1950s, yet it appears that the opposite is true.

A recent paper published in the journal Atmospheric Chemistry and Physics has shown that CO levels rose slightly from 1950 until the 1970s, then declined strongly to present-day values. These findings contradict computer models that had calculated a 40 percent overall increase in CO levels over the same period.
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The Greenland ice sheet is not only melting from above, but also from below. It has been discovered that this is caused by heat flowing up from Earth’s mantle. It’s variable across Greenland, absent in some places and intense in others. Last summer, NASA satellites revealed that the surface of Greenland’s massive ice sheet had melted over an unusually large area. NASA has been monitoring the Greenland melt for 30 years, July of 2012 was "unprecedented," partly because it was so large and partly because it occurred at the COLDEST part of the country, Summit station. The thawed area went from 40% of the ice sheet to 97% in just four days, starting on July 8th, 2012.read more

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NASA satellites reveal that the surface of Greenland’s massive ice sheet has melted this month over an unusually large area. NASA has been monitoring the Greenland melt for 30 years, and they’re calling this one "unprecedented," partly because it’s so large and also because it occurred at the COLDEST part of the country, Summit station. The thawed area went from 40% of the ice sheet to 97% in just four days, starting on July 8th.
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While most glaciers are melting at an alarming rate, one of them is growing bigger–ALSO as a result of climate change. Hotter summers may actually slow down the melting rate of glaciers. Researchers have learned that increased melting in the warmer summer months is causing the internal drainage system of the Greenland ice sheet to adapt to allow for more melted water, without speeding up the calving of ice chunks and water flow into the oceans. This is happening because in hot weather there is so much water that it runs off into channels below the ice, decreasing the layer that sits on top of the ice sheets and causes melting over a much larger surface area. read more