Gwynne Dyer: Losing control of climate change | Vancouver, Canada | Straight.com

So there will be famines, and massive waves of refugees, and ruthless measures taken to hold borders shut against them.
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In Britain, at 4 ° C hotter, there would doubtless be severe food rationing, but the country could still just feed itself if it farmed every available piece of land: the heat would not be lethal, and it would still be raining. That’s one advantage of being an island surrounded by sea; the other is that it’s easier to avoid being completely overrun by refugees. Britain would be almost unrecognisable, but it would be seen as one of the luckiest places on the planet.

The trouble is that 4 ° C is not a destination. It is a waystation on the way to 5 ° C or 6 ° C hotter, where all the ice on the planet melts and the only habitable land is what’s still above sea level around the Arctic Ocean.

Weather Life: The hottest and coldest place in the World: Humans currently thrive in a wide range of local climates

# The hottest place in the world where people live is Djibouti, in the Republic of Djibouti, Africa. The average temperature is 30.0ºC.
# Next hottest are Timbuktu in Mali and Tirunelevi in India, both 29.3ºC.
# The coldest place where people live is Norilsk, Russia, with an average temperature of -10.9ºC.