The way to deal with this both short term and long term is plentiful, zero carbon energy like solar, wind, nuclear.
Even without global warming, earth always had times and places which have been very inhospitable to humanity. Energy helps make earth habitable. Starting with fire, and continuing on with air conditioning, energy makes the world habitable for humanity.
Even without global warming, earth always had times and places which have been very inhospitable to humanity. Energy helps make earth habitable. Starting with fire, and continuing on with air conditioning, energy makes the world habitable for humanity.