The future for the human race

[Michael]

I think the extent and impact of the rapid climate change we are seeing, and more than likely causing, is a big unknown. I'd add that to the 'possibly worry about' list. As for food, I think a move to more plant-based diets will quite easily offset the projected change in population. So I wouldn't worry about that for a while.

Here's a beautiful presentation from Hans Rosling on population changes and predictions ....

http://youtu.be/hVimVzgtD6w