Europe swelters under record heat

Summary

Tens of millions of people are enduring extreme temperatures across Europe as a deadly heatwave pushes eastward. Scientists say a heatwave of this intensity so early in the summer would have been virtually impossible without human-caused climate change. Switzerland has broken its record for the hottest June day for the third consecutive day, while two nuclear reactors were taken offline after the Aare River became too warm to cool them. Denmark also recorded its highest temperature on record on Saturday, and Spain has reported 327 heat-related deaths this week. As Europe's fastest-warming continent faces increasingly severe heat, Nick Rushworth has the roundup.