"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
Lester Brown on MSNBC’s Hardball
July 22, 2011
Lester Brown and Robert Engleman of Worldwatch Institute answer tough questions on population on MSNBC's Hardball with Chris Matthews. Posted July 22, 2011.