Whenever I complain about 90F being hot in the Midwest, someone from the South always has to chime in about how they get 110F all summer and no one complains. But they also don't have to deal with -40F/C.
People in India are used to 100F+ weather, but would die quickly in -40F/C weather. The same thing happens in reverse.
Well, historical normal highs in Paris this time of year are around 21-24. Mumbai would have expected to see temperatures in the 31-33 range, so if Paris is seeing 45 then Mumbai might expect to see 55.
Of course weather is complicated and nonuniform, but this does give a sense of what areas of the world might no longer be inhabitable due to climate change. The worst part is that several of our biggest cities are in climates that are already quite warm on average. A lot of people live in Southeast Asia.
People in India are used to 100F+ weather, but would die quickly in -40F/C weather. The same thing happens in reverse.