Earth just hit a terrifying milestone for the first time in more than 800000 years - Business Insider

Business Insider

Earth just hit a terrifying milestone for the first time in more than 800000 years Business Insider The average concentration of carbon dioxide in Earth's atmosphere just topped 410 parts per million, according to measurements from Mauna Loa Observatory in Hawaii. This is the highest CO2 levels have gotten in the 800,000 years we have good data for ... and more »

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