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'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
'Meat'ing future food demands
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'Meat'ing future food demands

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TEDxUMN talk on meat consumption and the future of global agriculture.

TEDxUMN talk on meat consumption and the future of global agriculture.

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  • 1. Meat‟ing Future Food DemandsEmily Cassidy
  • 2. Thomas Malthus1766 – 1834
  • 3. Population Growth is exponential...0123456Billions160,000B.C.100,000B.C.10,000B.C.7,000B.C.6,000B.C.5,000B.C.4,000B.C.3,000B.C.2,000B.C.1,000B.C.1A.D.1,000A.D.2,000A.D.8972,150A.D.2011 – 7 Billion1945 – 2.3 Billion2050 – 9.1 Billion1492 – 500 MillionFirst Modern Humans1776 – 1 BillionSource: TCP
  • 4. Crop production can‟t keep up...
  • 5. Malthusian
  • 6. Global population growth isslowing...
  • 7. Malthus underestimated...
  • 8. Norman BorlaugDramatically increased wheat yields
  • 9. Was Malthus wrong?
  • 10. Image: NASAGrowing Demandsfor Food
  • 11. 7 2
  • 12. 4
  • 13. Image: NASADiets Matter
  • 14. 130
  • 15. 10%
  • 16. million calories per hectareMillion calories per hectare0 4 821 3 5 76
  • 17. 1 ton maizefoodfeedbiofuelsCaloriesdelivered topeopleCalories available in food systemCalories “lost”
  • 18. Fraction of crop calories that become food0 0.5 136% of calories used for animal feed
  • 19. Fraction of crop calories that become food0 0.5 159% of produced calories become food50% of produced protein become food
  • 20. 33%of calories go to feedChina
  • 21. 62%of calories are deliveredChina
  • 22. 67%of calories go tofeedUnited States
  • 23. 34%of calories aredeliveredUnited States
  • 24. 5.98.45.4 66.513.51610People fed per hectareassuming 2,700 kcal per day
  • 25. Per Capita Meat Consumption, 2009PoundspercapitaSource: FAO
  • 26. ~10 people per hectarePossible people fed per hectare0 2 4 6 8 10~10 billion people
  • 27. Actual Food Supply~6 people per hectare~6 billion peopleActual people fed per hectare0 2 4 6 8 10
  • 28. Where do we go from here?
  • 29. 1992 2008image:s: NASA
  • 30. Ray et al., 2012MAIZE - yield trendsYields increasingStagnating
  • 31. Ray et al., 2012RICE - yield trendsYields increasingStagnating
  • 32. 1 billion 2 billion
  • 33. Thomas Malthus
  • 34. What can do aboutthis?
  • 35. Increase Calories Available by 70%Million calories per hectare0 1 2 3 4+
  • 36. million people
  • 37. Image: NASADiets Matter
  • 38. Image: NASAThanks!

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