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Scientists confirm amassing CO2 heats Earth’s surface

Increase in incoming thermal energy bears signature of greenhouse gas

By
1:00pm, February 25, 2015
Alaska site

WARM UP  It may look snowy here, but a rise in atmospheric carbon dioxide directly increased the amount of thermal radiation striking this site near Alaska’s northernmost tip, new research finds.

For the first time, scientists have witnessed a direct connection between rising levels of atmospheric carbon dioxide and an increase in the amount of thermal radiation striking Earth’s surface. The work affirms a cornerstone of the theory that humans have contributed to worldwide warming in recent decades, the researchers report online February 25 in Nature.

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