Any shift in climate though would be slow enough that the food supply could readjust. I'm not saying food shortages wont happen, but the global trend will be for more precipitation, which is the limiting factor in modern food production.
Now places like Africa, which already cant produce enough to feed its population, could have some big problems, especially if they dont get their population under control. If a big drought caused food shortages elsewhere and other countries refuse to export, there could be serious consequences. But on a world wide scale, I dont see widespread starvation or anything like that
i haven't seen any science backing up a global trend in more precipitation... localized perhaps, but I don't think we have much of a clue about what this is going to do globally... If you have, link them cause i'd be interested to read...
We have less flexibility than ever with our food production... it's all well and good to say that everything's going to equal out globally but I haven't seen any evidence of that... if the proper growing climates/rainfall are stripped from areas with the requisite top-soil... we are going to have serious problems. Simply put, a second dustbowl ALONE would be catastrophic... If water supplies further diminish in SoCal and it becomes unliveable... even over a 50 year period THAT would be catastrophic... and that's just the first world... I'm not saying that everyone's going to die or anything but realistically, in terms of potential damage... this situation dwarfs any ecological disaster that we've faced down in recorded history... one does not simply relocate half the world's population while simultaneously changing its weather patterns... (and that's keeping our fingers crossed that we don't kill the oceans between now and then.)