atmospheric carbon levels

Carbon dioxide levels

Carbon dioxide levels

Global carbon dioxide levels near worrisome milestone Concentrations of greenhouse gas will soon surpass 400 parts per million at sentinel spot. Near the moonscape summit of the Mauna Loa volcano in Hawaii, an infrared analyser will soon make history. Sometime in the next month, it is expected to record a daily concentration of carbon dioxide in the atmosphere of more than 400 parts per million...

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Time history of atmospheric CO2

Time history of atmospheric carbon dioxide from 800,000 years before present until January, 2009.

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