H+E, Food 2011

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H+E, Food 2011

  1. 1. Food
  2. 2. What food isA drastic oversimplification
  3. 3. Plant growthlight + water + air+ other nutrients (soil)Animal growthwater + nutrients (plants or animals)
  4. 4. Figure 38.9
  5. 5. Food
  6. 6. Food? http://en.wikipedia.org/ wiki/Twinkies
  7. 7. Food?• Enriched Wheat Flour enriched with ferrous sulphate (iron), B vitamins (niacin, thiamine mononitrate [B1], riboflavin [B12] and folic acid).• Sugar• Corn syrup• Water• High fructose corn syrup containing one or more of partially hydrogenated soybean,• Vegetable and/or animal shortening cottonseed or canola oil, and beef fat.• Dextrose• Whole eggs • Calcium caseinate• Modified corn starch • Sodium stearol lactylate• Cellulose gum • Wheat gluten• Whey (sodium acid pyrophosphate, baking • Calcium sulphate• Leavenings soda, monocalcium phosphate) • Natural and artificial flavours• Salt • Caramel colour• Cornstarch • Sorbic acid (to retain freshness)• Corn flour • Colour added (yellow 5, red 40)• Corn syrup solids• Mono and diglycerides• Soy lecithin http://www.bbc.co.uk/• Polysorbate 60 dna/h2g2/alabaster/• Dextrin A516836
  8. 8. The HistoricalImportance ofAgriculture
  9. 9. ConnectionsBBC, 1978
  10. 10. Food Access
  11. 11. Urban Food Deserts
  12. 12. “...a neighborhood in whichresidents typically must traveltwice as far to reach the closestsupermarket or local grocer aspeople in better-appointedneighborhoods...”
  13. 13. Food Waste
  14. 14. 96,000,000,000pounds of food disposedof every year in the US Food Politics
  15. 15. “The US wastes40% of all foodproduced per year.” GOOD.is http://www.good.is/post/the-u-s-wastes-40-percent-of-all- food-produced-per-year-how-about-we-stop-doing-that/
  16. 16. EnvironmentalImpact
  17. 17. “We must recognize thatour food production systemwas conceived in different times;what worked then isinadequate, evendangerous, now.”
  18. 18. “...our food production system remainsstructurally blind to ecological andsocial imperatives. Designed tocreate wealth anddistribute cheap food, thesystem has been slow to factor inits responsibilities for the health ofthe land and the people.”
  19. 19. “...on a global basisAgriculture is thelargest threat tobiodiversity andecosystem functionof any single human activity.” United Nations Millennium Ecosystem Assessment
  20. 20. Why doesbiodiversitymatter?
  21. 21. EcosystemServices
  22. 22. PollinationPredation of pestsDecompositionStabilization of soilNitrogen fixation Sustaining Life
  23. 23. Resilience
  24. 24. Reduction ofGenetic Diversity
  25. 25. 90% livestock production based on 15 mammal and bird species75% food supply based on 12 plant species
  26. 26. StemRusthttp://www.wired.com/magazine/2010/02/ff_ug99_fungus/
  27. 27. Gene flowfrom cultivarsto wild species
  28. 28. Pollution
  29. 29. Eutrophication
  30. 30. http://en.wikipedia.org/wiki/algal_bloom
  31. 31. HabitatDestruction
  32. 32. Land Degradation
  33. 33. wind and water erosiondue to removal of vegetative coverand pulverization of soil by tillage,livestock and machinerysoil salinizationdue to flood irrigationsoil habitat disturbance
  34. 34. Eat local,save yourfoodshed
  35. 35. “Foodsheds are thefarmbelts around ourcities that once providedmost urban food.”
  36. 36. Saving local foodsheds - preserves an area’s • agriculture land • traditions • varietal crops - increases an area’s • resilience • quality of life
  37. 37. FurtherReading

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