Yes, although I think it would hold even if it was known in advance. Another key part is that some areas on earth would remain habitable / producing food. Rich

Yes, although I think it would hold even if it was known in advance. Another key part is that some areas on earth would remain habitable / producing food. Rich (northern) nations could try some novel approaches to mitigate the effects on a local scale (greenhouse agriculture). Yet other nations could attempt to conquer/buy better placed weak/poor countries.