We can cut carbon emissions by one third by replacing fossil fuels with renewable energy sources for electricity and heat production." –Lester R. Brown, Janet Larsen, Jonathan G. Dorn, and Frances Moore, Time for Plan B: Cutting Carbon Emissions 80 Percent by 2020
Geoffrey Lean's article 'One poor harvest away from chaos' in the The Telegraph cites Lester Brown: "the world is only one poor harvest away from chaos. We are so close to the edge that politically destabilising food prices could come at any time." Posted January 12, 2011.