Who will feed them?

...and with what?

I feel I need to expound on my previous post: please download the link http://nas5.kizoa.com/kp/Q/o2jz9z06.mp4 (it takes about a minute to download, so be patient) and have a look at it. I did it this way in order to evade the myriad of ads YouTube seems to be sticking onto everything nowadays.

This topic is something that has has been worrying me since my youth (which was a long, long time ago).
Become hunter gatherers? There will be nothing left to hunt or gather.

Mankind has been transgressing the law of exponential growth for generations. Mother Nature is not the benign old lady she is made out to be. There will come a time when she will bite back.