More than 3bn could live in extreme heat by 2070 | Unless greenhouse gas emissions fall, large numbers of people will experience average temperatures hotter than 29C. This is considered outside the climate "niche" in which humans have thrived for the past 6,000 years.

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Submitted May 09, 2020 at 11:43AM by BattlemechJohnBrown https://ift.tt/2WUzNqj