Rising emissions could ‘dramatically’ increase risk of US megadroughts

Blue and Green: Increasing greenhouse gas emissions drive up the risk of severe droughts, or megadroughts, in the US southwest and central plains, according to a study by NASA. According to the research, which has been published in the journal Science Advances, the current likelihood of a megadrought, defined as a drought lasting more than three decades, is 12%. If greenhouse gas emissions stop increasing by mid-century the findings suggest the likelihood of a megadrought could reach more than 60%. If the......

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