Answer ( 1 )

  1. Higher temperatures: Every continent has warmed substantially since the 1950s. There are more hot days and fewer cold days, on average, and the hot days are hotter.

    Heavier storms: The world’s atmosphere can hold more moisture as it warms. As a result, the overall number of heavier storms has likely increased since midcentury, particularly in North America and Europe (though there’s plenty of regional variation).

    Heat waves: Heat waves have likely become longer and more frequent around the world over the past 50 years, particularly in Europe, Asia, and Australia.

    Shrinking sea ice: The extent of sea ice in the Arctic has shrunk since 1979, by between 3.5 percent and 4.1 percent per decade, on average.

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