Torrential rains in Japan, record-breaking heatwaves in Europe, and recurring droughts in the western US. For the second year in a row the start of summer in the northern hemisphere has been marked by extreme weather. To what extent is global warming to blame? These extreme weather events happing at almost the same time in multiple locations around the world are “absolutely not a coincidence", says Pascal Yiou, climatologist and researcher at French research centre le Laboratoire des sciences du climat et de l'environnement. Yiou says global warming is to blame. “It is disrupting the whole dynamic of the atmosphere,”...