This is why we’re worried,” said Cornell University climate scientist Natalie Mahowald, who wasn’t part of the study. They looked back 6,000 years to come up with a sweet spot of temperatures for humanity: Average annual temperatures between 52 and 59 degrees (11 to 15 degrees Celsius). We can — and do — live in warmer and colder places than that, but the farther from the sweet spot, the harder it gets. The scientists looked at places projected to get uncomfortably and considerably hotter than the sweet spot and calculated at least 2 billion people will be living in those conditions by 2070. Currently about 20 million people live in places with an annual average temperature greater than 84 degrees (29 degrees Celsius) — far beyond the temperature sweet spot.

Source: Philippine Daily Inquirer May 04, 2020 22:38 UTC