Scientists announced this week that the level of heat-trapping carbon dioxide in the atmosphere has reached a level not seen on earth for a long time, surpassing 400 parts per million (0.000400 mole), a dire milestone. The best available evidence suggests the amount of carbon dioxide gas in the...
Carbon dioxide levels in atmosphere pass troubling critical milestone
Monday, May 13, 2013
Carbon dioxide levels in atmosphere pass troubling critical milestone
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