>>11627807around +6C the heat leaks out to space as stefan-boltzmann's law depends on the 4th power of the temp difference
This is enough to turn latitudes 0...60 to open desert and will result in 95% of the world population to die off - not from heat but from hunger. The 95% doesn't even include nuclear and chemical wars/terrorism (fighting over rivers etc.) so could be even worse.
All this would happen in 100y, before sea rising even becomes anything major.
