[boppo1]

> And not far fetched.

Can you point me in the direction of some stuff that supports the likelihood of these scenarios? The middle latitudes being unlivable does seem extreme and unlikely to me, especially given the explanation in the article about how 85F was used as a threshold for unlivable by some studies.

[shawnb576]

The threshold is typically 106F "wet bulb", above which much exposure will kill people, literally begin to cook them. Many parts of the world are hitting this.

Examples:

[1] https://www.pbs.org/newshour/show/rising-temperatures-dying-...

[2] https://www.nytimes.com/interactive/2020/07/23/magazine/clim...

"Today 1% of the world is an unlivable hot zone, by 2070 it may be 19%"