ScienceDaily: Did you know that heatwaves not only occur on land, but also in the sea? We all remember the record-breaking European heatwave in summer of 2003: forests burned, rivers dried up and more than ten thousand people in Europe died as a result of the extremely high temperatures. The marine environment -- and in particular the organisms -- also suffer from heat stress. Two exceptional heatwaves in the ocean during the past few years have alarmed us scientists. Humans will also feel their consequences in...