Unchecked global heating will bring once unthinkable extreme heat, with 16 US cities to rival summer highs seen in Middle East

The climate crisis risks pushing many Americans into entirely new climatic realities, with a new analysis finding there are 16 US cities at risk of having summer temperatures on a par with locations in the Middle East by the end of the century.

Heatwaves have roiled huge swaths of the US this summer, placing nearly a third of the population under some sort of heat advisory and driving temperatures to as high as 115F (46C) in parts of the Great Plains. Hundreds of heat records have tumbled, from Boston, Massachusetts, which hit 100F (37C), to Portland, Oregon, which reached 102F (38.9C) on Tuesday.

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