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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 What are the limiting factors?
Industrialized practices have allowed food production to keep pace with population
The Green Revolution Industrial Farming Innovations in food production throughout the 70’s and 80’s • Fertilizer • Mechanized farming • Irrigation • Pesticides/herbicides • Genetic modification
Tradeoffs? What should we base our carrying capacity on? Modern Farming Organic Farming
How is technology continuing to change agriculture? • Future of Food – positive vs. negative stories
Today in the world: • Hunger statistics • What trends can be summarized from these stats?
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
Is there enough food? • Worldwide? • Locally?
What is the need for increasing world food production? • Green Revolution dramatically increased yields throughout the 70’s and 80’s
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
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
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
Normalized Difference Vegetation Index • Which areas are very poor? Which are improving? Why?
Question 5: Meet with your world region and summarize the production, concerns, and needs of the area.
Land and Agriculture What other factors affect the ability of an area to feed itself?
Which world region has the lowest production/highest need? • Focus-- Let’s investigate the country of Mozambique!
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.