Heat Stress

A study from Exeter University predicts (to the surprise of the authors) that the effects of climate change will be more intense and occur quicker than most people currently believe (https://www.theguardian.com/environment/2020/may/05/one-billion-people-will-live-in-insufferable-heat-within-50-years-study). The vast majority of the human population at present  occupy a 'comfort zone' where the temperatures range between 6 and 28 degrees Celsius. Within 50 years, however, it seems likely that areas which are currently home to 1/3 of the world's human population will become as hot as the hottest zones within the Sahara desert. It goes without saying this will displace enormous numbers of folk and greatly damage food production.