Signs of human climate change influence on drought traced back to 1900

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    Signs of human climate change influence on drought traced back to 1900

    We have been pumping out greenhouse gases for a very long time – and now we have evidence that humans were changing the climate over a century ago



    Environment



    1 May 2019

    US Dust Bowl

    Did emissions make the US Dust Bowl of the 1930s worse?

    Photo 12/UIG via Getty Images

    By Adam Vaughan

    DROUGHTS around the world dating to the early 20th century may have been made worse by greenhouse gas emissions.

    Scientists have previously hesitated to draw links between global warming and drought, due to a lack of observational data and the difficulty of distinguishing natural cycles of dry conditions from ones that are driven by climate change.

    But Kate Marvel at the University of Columbia in New York and her colleagues have found that the impact of greenhouse gas emissions on drought …

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