How extreme heat is changing Europe

This week, temperatures across much of Europe reached above 40 C. In parts of Spain and Portugal, it was hotter than the Sahara Desert. Governments are telling citizens to stay indoors. Schools have closed. Wildfires have spread. Nuclear reactors have reduced their output because rivers have become too warm to cool them efficiently. The World Health Organization says Europe’s heat is responsible for 1,300 deaths since June 21st. For generations Europe built its cities, homes, public spaces and tourism industry around the assumption that summers would be hot, but bearable. Th...