> Multi-decade time frame can only be thought of as catastrophic when it comes to change of this magnitude.
If someone moves from Singapore to Poland is that a catastrophe? We'd be talking a smaller temperature delta than that and this is still a theoretical risk. That isn't necessarily something that people worry about beyond saying "it is very hot" or "it is very cold". It doesn't have a lot of implications beyond needing to move crops around and changing building standards (which is achievable over long periods of time).
Now just a 10-15 degree swing isn't the end of the story because if the average temperature crosses 0 that might well be a big problem. I dunno. But it sounds solvable, these aren't particularly scary scenarios being put forward. They're more of the expensive and inconvenient variety.
