carbon dioxide

Carbon’s Climb Speeds Up

Mar 14, 2013
News that carbon dioxide levels rose sharply last year confirm that climate change will soon be impossible to stop.

Thawing Tundra Threat to Frozen Carbon

Feb 12, 2013
The melting of Arctic ice frozen for many thousands or even millions of years is speeding up a potential route for carbon frozen deep below ground level to seep into the atmosphere.
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