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Every observatory in the world now reports carbon dioxide is at highest level in 4 million years
2016-06-19 14:34:00| Climate Ark Climate Change & Global Warming Newsfeed
Mashable: One by one, the observatories sounded the alarm in the past few years--from the peak of Mauna Loa in Hawaii, and the top of the Greenland ice sheet--as the amount of carbon dioxide in the Earth's atmosphere crept above 400 parts per million (ppm). The last alarm bells went off this week, when scientists announced that the Halley Research Station in Antarctica, as well as a monitoring post at the geographic South Pole, both located amid the most pristine air on the planet, have now passed the 400...
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