The real short term problem if we get to those levels is migration and war. That will compound any intrinsic environmental stresses, especially if nukes fly. Th

The real short term problem if we get to those levels is migration and war. That will compound any intrinsic environmental stresses, especially if nukes fly. There are several nuclear armed countries in drought zones. That would then probably lead to continued emissions, as any international effort to reduce them would break down, and people would take what advantage they could in a more tooth and nail world.