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Grist
Apr 21, 2017, 4:59 pm206 ptsThis is not normal: We’re on track to witness a climate unseen in 50 million years by mid-century. In pre-industrial times, the concentration of carbon dioxide in the atmosphere stood at 280 parts per million. And that number has been rising ever since, warming the planet by 1.8 degrees F (1 degree C) along…
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Leaf through planet Earths environmental headlines in one convenient place. Read, share and discover the latest on ecology, science and green living from the web's most popular sites.