Wired magazine has a great series of nine infographics from the November issue about the world's food supply problems.

Forty years ago, advances in fertilizers and pesticides boosted crop yield and fed a growing planet. Today, demand for food fueled by rises in worldwide consumption of meat and protein is again outpacing farmers ability to keep up. It's time for the next Green Revolution.

Thanks for the link Ethel!  Here are a few more.  Check them all out on Wired.com.