"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.
Il muro di Berlino della questione climatica: Lester Brown interview on climate change with OggiScienza, Italian magazine, posted May 3, 2010.