"Attention has focused on oil insecurity, and rightly so, but it is not the same as food insecurity. An empty gas tank is one thing, an empty stomach another. And while there are substitutes for oil, there are none for food." –Lester R. Brown, Plan B 4.0: Mobilizing to Save Civilization.
Scott Thill interviews Lester Brown in the article 'Time for Plan B: Our Civilization is on the Edge of a Systemic Breakdown' for AlterNet. Posted March 26, 2011.