If the Antarctic and Greenland ice melts, it will cause 10 meters of sea level rise.
If the AMOC stops, it could throw Europe into a mini ice age.
If the rainfall in the Amazon rainforest turns to drought there are large areas that would become savannah, and become a net carbon source.
If the permafrost melts, large amounts of methane would be released.
All these other tipping points could cause a large part of the population to become climate refugees.
