US scientists warn, in an article in Nature Climate Change, that if global warming continues as is, large parts of South Asia will become completely uninhabitable for humans around the year 2100, because temperatures will reach a point too hot for humans to survive.
The researchers, that published an alarming studies about the Persian Gulf before, now focussed their research on the lowland flats aroud the Ganges and the Indes river. About 1 billion people live in the affected area.
Computer simulations show that in the north of India, and parts of Pakistan and Bangladesh will cross the temperature treshold above which human survival is impossible, in the last 3 decades of this century.
According to the authors, this is very alarming, for it is a region were extreme vulnerability and risk come together.
For their calculations, the researchers did not just look at temperature, but they included humidity as well.
The flats around the Ganges and Indus rivers have very high air humidity. This makes it hard for the human body to get rid of excess heat. Projected temperature rise will create a situation were a human body cannot survive for more than a few hours without fatally overheating.
https://www.volkskrant.nl/buitenland/amerikaanse-wetenschappers-delen-van-zuid-azie-tegen-2100-onleefbaar-doordat-het-er-veel-te-heet-wordt~a4509331/tl;dr: UK, get ready for 1 billion Indian and Pakistani refugees.