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Population & The World Food Supply

Population & The World Food Supply. What are the limiting factors ?. Does the world produce enough food to feed itself?. Industrialized practices have allowed food production to keep pace with population. The Green Revolution.

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Population & The World Food Supply

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  1. Population & The World Food Supply What are the limiting factors?

  2. Does the world produce enough food to feed itself?

  3. Industrialized practices have allowed food production to keep pace with population

  4. The Green Revolution Industrial Farming Innovations in food production throughout the 70’s and 80’s • Fertilizer • Mechanized farming • Irrigation • Pesticides/herbicides • Genetic modification

  5. What are the limits to the green “miracle”?

  6. Tradeoffs? What should we base our carrying capacity on? Modern Farming Organic Farming

  7. Consequences of Industrialized Agriculture

  8. How is technology continuing to change agriculture? • Future of Food – positive vs. negative stories

  9. Today in the world: • Hunger statistics • What trends can be summarized from these stats?

  10. World Hunger Map

  11. Other side of the coin: The Average American • 126lbs of potatoes • 95lbs of vegetables • 92 lbs of fruit • 112lbs of red meat • 233 lbs milk cream • Survival ~300lbs of grain

  12. Is there enough food? • Worldwide? • Locally?

  13. What is the need for increasing world food production? • Green Revolution dramatically increased yields throughout the 70’s and 80’s

  14. What causes famine? • At the same time that crop yields dramatically increased, massive famines occurred throughout Africa. • Many believed that lack of access as opposed to true global food shortage was the cause

  15. What can be done? • Increase development to increase income • Infrastructure may be improved = roads • Food may be imported/purchased • Stabilize political conflict? • Introduce industrialized agriculture practices in Africa? • Monitor signs of famine and prepare for shortages before they occur

  16. How can drought be predicted/famine be averted? • NASA and US Agency for International Development (US AID) work together to use satellite images of plant growth/coverage in a region----> Famine Early Warning System (FEWS) • Allows US/International organizations to prepare and supply aid in a timely manner

  17. Normalized Difference Vegetation Index • Which areas are very poor? Which are improving? Why?

  18. Crop Usage Intensity

  19. Question 5: Meet with your world region and summarize the production, concerns, and needs of the area.

  20. Land and Agriculture What other factors affect the ability of an area to feed itself?

  21. Which world region has the lowest production/highest need? • Focus-- Let’s investigate the country of Mozambique!

  22. In Class Mini-Case Study Task: • Read over the information on the country of Mozambique. • Study the Crop Usage Intensity Maps to help you understand agricultural trends in the country over the last 40 years. • Then, decide how you will invest your money in the country. • Fill out answer to packet questions. • Each group will give a brief summary of your findings. You should put together a slide/or poster of your choices.

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