The Earth is always trying to become a snowball. It has a pattern that has been consistent for millions of millions of years. Homo Sapiens were basically survivalists that won the lottery because it was a warm side of the last cold period.

Make no mistake, the heat we feel now is nothing compared to the heat the planet has endured in the past. Dinosaurs had a much hotter world, with the poles being tropical forests. But the problem is we broke the normal hot and cold time cycle. And the next cold cycle is going to be a massive freeze and its going to happen in a flash (thousands of years) but when it does its going to mean that if we survive the heat, will we survive the next cold that could bring mile thick glaciers at the equator.