France, July 12 -- France's late June heatwave broke temperature records across the country. Paris reached 41C for the first time, while Bordeaux hit 43C - the same temperature as Baghdad.

A record 72 of France's 96 mainland departments were placed on red alert. The previous record was 20 departments at once.

"Everybody last week in France was hot and that's very new," says Antoine Poincare, a climate risk expert and head of the Apave Climate School. "When there's a flood, it may be a huge event, but it maybe only impacts the north of France and 80 percent don't see the impact. [Now] everybody gets it at the same time."

France's health authority estimates that more than 2,000 additional heat-related deaths were registered from 22 to 29 J...