I think that's a result of the culturally unacceptable idea of geoengineering. People worry that promoting those ideas might stop people like you from worrying

I think that's a result of the culturally unacceptable idea of geoengineering. People worry that promoting those ideas might stop people like you from worrying and lack of worry could lead to everyone emitting more greenhouse gasses. I think if an emergency happens, we'll be capable enough of mitigating it in the short term until we sort out new agricultural land, move cities, etc. You can move a city in a couple of decades - see most big Chinese cities for proof.