On a long enough timeline, we don't have a choice. Whether we cause a catastrophe or not, there is always going to be another worst case scenario.

At the same time that writing was being developed in mesopotamia, most of Northern Europe was under a mile of ice. As that ice receeded, the cradle of civilization, mesopotamia, went from being the breadbasket of the world and a lush garden to a desert. Eventually, well within what we would consider to be civilization, there was a collapse in the bronze age because the climate in those regions stopped being capable of supporting the life that it did previously. So things get warmer, it's a worst case scenario. Things get colder, it's a worst case scenario.