Part 62 (1/2)

Jeff Rubin, ”How High Oil Prices Will Permanently Cap Economic Growth,” Bloomberg View, September 23, 2012, /news/2012-09-23/how-high-oil-prices-will-permanently-cap-economic-growth.html; Bryan Walsh, ”There Will Be Oil-and That's the Problem,” Time, March 29, 2012.

39 methane for 90 percent of their fertilizer costs

Maria Blanco, Agronomos Etsia Upm, ”Supply of and Access to Key Nutrients NPK for Fertilizers for Feeding the World in 2050,” November 28, 2011, eusoils.jrc.ec.europa.eu/projects/NPK/Doc.u.ments/Madrid_NPK_supply_report_FINAL_Blanco.pdf, p. 26.

40 ”more than a calorie of fossil fuel energy to produce a calorie of food”

Michael Pollan, The Omnivore's Dilemma: A Natural History of Four Meals (New York: Penguin, 2006), p. 46.

41 spend 50 to 70 percent of their income on food

Lester Brown, Full Planet, Empty Plates: The New Geopolitics of Food Scarcity (New York: Norton, 2012), ch. 1, _content&view=article&id=4801:soil-erosion-the-countrys-unseen-enemy&catid=51:on-the-cover&Itemid=83; Lester Brown, Eco-Economy: Building an Economy for the Earth (New York: Norton, 2001), ch. 3, /books/eco/eech3_ss5.

43 50 percent reduces many crop yields by 25 percent

Vidal, ”Soil Erosion Threatens to Leave Earth Hungry.”

44 Increasing desertification of gra.s.slands

Judith Schwartz, ”Saving US Gra.s.slands: A Bid to Turn Back the Clock on Desertification,” Christian Science Monitor, October 24, 2011.

45 45 percent more water

”No Easy Fix: Simply Using More of Everything to Produce More Food Will Not Work,” Economist, February 24, 2011.

46 from 3.5 percent annually three decades ago to a little over one percent

Grantham, ”Time to Wake Up.”

47 three quarters of all plant genetic diversity may have already been lost