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...