I think it would really push geo-engineering to a whole new level. Rapid global cooling would render huge chunks of landmass virtually useless and put many of

I think it would really push geo-engineering to a whole new level. Rapid global cooling would render huge chunks of landmass virtually useless and put many of the worlds most economically important cities under a glacier, so governments would be quickly pressured to fund drastic measures to re-stabilize the climate before we have another ice-age.