17. Crude Oil, Average Spot Price Chart. Mongabay.com. (click here)
18. World Must Brace for Higher Food Prices, Experts Warn. Gulf Times/AFP. 20 August 2012. (http://www.gulf-times.com/site/topics/article.asp?cu_no=2&item_no=526141&version=1&template_id=48&parent_id=28)
19. 2007-2008 World Food Price Crisis. Wikipedia. en.wikipedia.org/wiki/2007%E2%80%932008_world_food_price_crisis)
20. Vandana Shiva. The Green Revolution in the Punjab. The Ecologist, Vol. 21, No. 2, March April 1991. (livingheritage.org/green-revolution.htm)
21. Fertility (soil). Wikipedia. (en.wikipedia.org/wiki/Fertility_(soil)#Soil_depletion)
22. Tom Paulson. The Lowdown on Topsoil: It's Disappearing. Seattle PI. 21 January 2008. (click here)
23. Loss of Arable Land. Sustainable Settlement in Southern Africa. (http://www.sustainablesettlement.co.za/issues/landloss.html)
24. World Food Supply. United Nations Environment Programme (UNEP). 2011. (http://www.grida.no/publications/rr/food-crisis/page/3562.aspx)
25. Evan O'Neil and William Vocke. Declining Fish Stocks. Policy Innovations. 10 September 2010. (http://www.policyinnovations.org/ideas/video/data/000340)
26. Big-Fish Stocks Fall 90 Percent Since 1950, Study Says. National Geographic News. 15 May 2003. (news.nationalgeographic.com/news/2003/05/0515_030515_fishdecline.html)
27. Mat McDermott. More Factory Farms Behind 20% Increase in Meat Consumption Over Past Decade. Trehugger. 12 October 2011. (click here)
28. Meat Production Continues to Rise. Worldwatch Institute. (http://www.worldwatch.org/node/5443)
29. David Pimentel and Marcia Pimentel. Sustainability of Meat-based and Plant-based diets and the Environment. The American Journal of Clinical Nutrition, vol. 78 no. 3, September 2003. (http://www.ajcn.org/content/78/3/660S.full)
30. Desertification. Wikipedia. (en.wikipedia.org/wiki/Desertification)
31. John Vidal. Soil Erosion Threatens to Leave Earth Hungry. The Guardian. 14 December 2010. (click here)
32. Shrinking Arable Land Threatens Grain Security. China Daily. 18 October 2010. (click here)
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