C02 Levels Top 415 PPM for First Time in Human History

EcoWatch
By Olivia RosaneMay 13, 2019, 11:49 am178 pts
The human species experienced an alarming milestone this weekend: for the first time since Homo sapiens evolved, atmospheric carbon dioxide levels surpassed 415 parts per million (ppm), CNN reported. The carbon dioxide high was recorded by the Mauna Loa Observatory in Hawaii and tweeted out by the Scripps…

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