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The authors of the Fourth National Climate Assessment pulled no punches in issuing a dire warning regarding the inevitable consequences of leaving the rapid progression of global warming unchallenged. The report predicts that the United States economy will suffer an annual loss of hundreds of billions of dollars, along with the loss of thousands of American lives, every year by the end of the century, as the direct result of the effects of climate change.
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A massive impact crater the size of the city of Paris has been discovered under the ice sheet in northern Greenland. Partially hidden under the Hiawatha Glacier, this 31-kilometer (19.3-mile) crater is estimated to be no older than three million years, but the researchers believe that it was formed much more recently, possibly as late as 12,000 years ago, making it the largest impact crater of its kind on Earth.
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Researchers in Antarctica have discovered that the frozen continent’s ice shelves produce an audible sound when the wind passes over the surface snow, a haunting song from a landscape that remains alien to the majority of us. The researchers also found that the "song" changes as the surface conditions of the ice changes — meaning that this Antarctica aria might become useful in tracking the effects of climate change on the ice at the bottom of the Earth.
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