1,000+ dead in France from heat as US faces July 4th heat wave

Half of all Americans are facing prolonged, dangerously hot temperatures from an intense heat dome as they head outdoors to celebrate the country's 250th Independence Day. The temperatures in some spots in the eastern US, like New York City and Washington, DC, could be the hottest in over a decade, and numerous high temperature records are likely to fall in the coming days.

This is after swaths of Europe were also under a heat dome, a vast area of stagnant high pressure that acts like a lid on a pot, trapping heat. Heat domes are not unusual, but are being supercharged by the human-driven climate crisis.

0:00 France: 1,000+ deaths linked to heat 0:19 Half of Americans brace for intense heat 3:10 How to stay safe in the heat 5:33 Why extreme heat kills 489,000 people a year 10:13 'No one is safe from heat'

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