Quote Originally Posted by Gawain of Orkeny
For the most part it is or do you think you get more plant growth in the cold? Just as global warming doesnt mean the earth will become uninhabitable. Its global warming that accounts for the abundance of food today.
The problem is the transitionary state were we get "environmental refugees" (and the people that doesn't move but are forced to adapt quickly into new conditions) and that it takes a few centuries to get high quality soil over vast areas.
To put it differently, the worlds food production will go down for a few decades before the new adoptations makes it possible to get good harvests in new areas, when encountering a global temperature rise.