7 reasons to be alarmed by record-setting levels of CO2

There was a 2009 analysis in Science that found when CO2 levels were sustained in the 400 to 500 ppm range some 15 to 20 million years ago, it was 5°F to 10°F warmer globally, and seas were also 75 to 120 feet higher. Despite the best efforts of the Trump administration to ignore or contradict scientific reality, carbon dioxide levels continue to soar far outside the...

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Every observatory in the world now reports carbon dioxide is at highest level in 4 million years

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...

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