Heat is torching records and spreading across the U.S. and Europe

Extreme heat is choking continents around the world, with record-setting temperatures expected Tuesday in the United States and several European nations.

Around 63 million people in the U.S. are under heat alerts from Southern California to Miami. A punishing heat wave in southern Europe is also nearing its peak, fueling widespread triple-digit temperatures across Spain, Italy and Greece. Meanwhile, China and other parts of Asia have been baking for weeks on end.

These punishing heat waves, many persisting for long stretches of time, are expected to become a fixture of a warming world. Studies have shown that climate change is making […]

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