Ice sheets collapse raising sea levels and flooding the coastal cities in which a significant proportion of the world's population lives causing massive economi

Ice sheets collapse raising sea levels and flooding the coastal cities in which a significant proportion of the world's population lives causing massive economic and human displacement and suffering. Warming makes the current world breadbaskets (e.g. Russia, Ukraine, USA mid-west) unsuitable for grain with no replacement available causing world famine. That's just a start. It's a long list.