"Eliminating water shortages depends on a global attempt to raise water productivity similar to the effort launched a half-century ago to raise land productivity, an initiative that has nearly tripled the world grain yield per hectare." –Lester R. Brown, World Facing Huge New Challenge on Food Front in Plan B 3.0: Mobilizing to Save Civilization

In late October, the Harvard Crimson sat down with Lester Brown, who was at Harvard to give several talks on sustainability. The author of more than 50 environmental books, including World on the Edge and Full Planet, Empty Plates, Brown has been a vocal advocate for environmental sustainability, even going so far as to call for “war-time mobilization” in order to save the planet. Check out the full interview here.