You're reading: Business Insider: At least 20 people die from Europe’s extreme heat

July 25 was Paris’ hottest day in recorded history. The thermometer in the French capital hit 108.6 degrees Fahrenheit (42.6 degrees Celsius). Locals hopped into the Trocadéro fountain across from the Eiffel Tower, and cyclists in the Tour de France donned vests made of ice.

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