'Meat'ing future food demands
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TEDxUMN talk on meat consumption and the future of global agriculture.
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'Meat'ing future food demands
- 1. Meat‟ing Future Food Demands Emily Cassidy
- 2. Thomas Malthus 1766 – 1834
- 4. Population Growth is exponential... 0 1 2 3 4 5 6 Billions 160,000 B.C. 100,000 B.C. 10,000 B.C. 7,000 B.C. 6,000 B.C. 5,000 B.C. 4,000 B.C. 3,000 B.C. 2,000 B.C. 1,000 B.C. 1 A.D. 1,000 A.D. 2,000 A.D. 8 9 7 2,150 A.D. 2011 – 7 Billion 1945 – 2.3 Billion 2050 – 9.1 Billion 1492 – 500 MillionFirst Modern Humans 1776 – 1 Billion Source: TCP
- 5. Crop production can‟t keep up...
- 6. Malthusian
- 8. Global population growth is slowing...
- 10. Norman Borlaug Dramatically increased wheat yields
- 13. Image: NASA Growing Demands for Food
- 15. 7 2
- 16. 4
- 18. 1 30
- 19. 10%
- 20. million calories per hectareMillion calories per hectare 0 4 821 3 5 76
- 22. 1 ton maize food feed biofuels Calories delivered to people Calories available in food system Calories “lost”
- 23. Fraction of crop calories that become food 0 0.5 1 36% of calories used for animal feed
- 24. Fraction of crop calories that become food 0 0.5 1 59% of produced calories become food 50% of produced protein become food
- 25. 33% of calories go to feed China
- 26. 62% of calories are delivered China
- 27. 67% of calories go to feed United States
- 28. 34% of calories are delivered United States
- 29. 5.9 8.4 5.4 66.5 13.5 16 10 People fed per hectare assuming 2,700 kcal per day
- 30. Per Capita Meat Consumption, 2009 Poundspercapita Source: FAO
- 31. ~10 people per hectare Possible people fed per hectare 0 2 4 6 8 10 ~10 billion people
- 32. Actual Food Supply ~6 people per hectare~6 billion people Actual people fed per hectare 0 2 4 6 8 10
- 33. Where do we go from here?
- 35. Ray et al., 2012 MAIZE - yield trends Yields increasing Stagnating
- 36. Ray et al., 2012 RICE - yield trends Yields increasing Stagnating
- 37. 1 billion 2 billion
- 38. Thomas Malthus
- 39. What can do about this?
- 40. Increase Calories Available by 70 % Million calories per hectare 0 1 2 3 4+
- 43. million people