Nearly 45 million people in the South were under an excessive heat warning — the most severe category for heat conditions — and another 39 million people were under a heat advisory.
Across North America, Europe and Asia, hundreds of millions of people endured blistering conditions. The U.S. special envoy for climate change called it “a threat to all of humankind.”
Across North America, Europe and Asia, hundreds of millions of people endured blistering conditions. The U.S. special envoy for climate change called it “a threat to all of humankind.”