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Africa dramatically dried out 5,500 years ago – our new study may warn us of future climate tipping points https://theconversation.com/africa-dramatically-dried-out-5-500-years-ago-our-new-study-may-warn-us-of-future-climate-tipping-points-229323?utm_source=dlvr.it&utm_medium=mastodon #ClimateChange
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