Last month’s average temperature was 0.93 degrees Celsius (1.7 degrees Fahrenheit) above the 1991-2020 average for September. “This is not a fancy weather statistic,” Imperial College of London climate scientist Friederike Otto said in an email. This past September was 1.75 degrees Celsius (3.15 degrees Fahrenheit) warmer than the mid-1800s, Copernicus reported. The world agreed in 2015 to try to limit future warming to 1.5 degrees Celsius (2.7 degrees Fahrenheit) warming since pre-industrial times. “This month was, in my professional opinion as a climate scientist – absolutely gobsmackingly bananas,” climate scientist Zeke Hausfather said on X, formerly known as Twitter.

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Persons: “, ”, Copernicus, Carlo Buontempo, Friederike Otto, Samantha Burgess, Jessica Moerman, El Nino, Buontempo, ” Otto, Zeke Hausfather, ___ Read, Seth Borenstein Organizations: Imperial College of London, El Nino, Evangelical Environmental, Twitter, AP Locations: U.S