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How has farming changed?. Cattle Feedlots Chicken Farms.

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Presentation on theme: "How has farming changed?. Cattle Feedlots Chicken Farms."— Presentation transcript:

1 How has farming changed?

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3 Cattle Feedlots

4 Chicken Farms

5 Tools and Technology Then… Now…

6 Agriculture Processes TRADITIONAL Plows pushed by farmer or pulled by livestock Manure fertilizer Ditch Irrigation Weeds and pests removed by hand or machines MODERN Plows by machines Synthetic chemical fertilizer Overhead sprinkler irrigation Weeds and pests removed by chemicals

7 Green Revolution 1950-1970 New varieties of crops led to large crop yield –Required use of water, fertilizer, and pesticides

8 PROS and CONS Reduced the price of food Benefited large farms, but not family farms –No money for chemicals, can’t use machines because farms are too small

9 Traditional or Modern? 1.Use of chemical pesticides 2.Use of horse drawn or human pushed plows 3.Larger crop yields 4.Weeds removed by hand or machines 5.Large farms owned by corporations 6.Use of manure or natural fertilizer

10 Only 10% of agriculture land is owned and operated by families. Why so little?

11 From Family to Factory freewrite 90% of the food in the grocery store is grown/raised on a factory farm. –Why have we shifted from small family farms to large factory farms? –Why doesn’t everyone know this?

12 Consequences of changes in farming…

13 Antibiotic Use 70% of antibiotics consumed in the US are consumed by farmed animals

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15 Everybody Poops

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17 Farm Animal Waste Over 1 million tons of waste produced each day Manure contains multiple pollutants such as heavy metals, antibiotics, pathogens, nitrogen and phosphorus So…where does it go?

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22 Eating up the Earth’s Resources If everyone ate like the typical American it would take TWO Earth’s to supply our food.

23 Which has more impact on the environment?

24 Take a Guess... What percentage of the world’s forests and rainforests have been cleared to make room for farm animals or animal feed crops?

25 LAND What percentage of the world’s forests and rainforests have been cleared to make room for farm animals or animal feed crops? 50%

26 Take a Guess... If the grains fed to farm animals in the U.S. were instead fed to people, how many people could be fed each year?

27 LAND AND ENERGY If the grains fed to farm animals in the U.S. were instead fed to people, how many people could be fed each year? 800 Million

28 Take a Guess... For the same amount of water it takes to produce a single hamburger, how many showers could you take?

29 WATER For the same amount of water it takes to produce a single hamburger, how many showers could you take? Six Months Worth of Showers

30 The High Cost of A Hamburger Producing a single hamburger: uses enough fuel to drive 20 miles uses 600 gallons of water uses more than 7 times its weight in grains like corn and soy

31 It takes about … –5 gallons of water = 1 pound of potatoes –10 gallons = 1 slice of bread –60 gallons = 1 pound of wheat –110 gallons = 1 pound of corn –12,000 gallons = 1 pound of meat

32 A to Z Put each letter of the alphabet on a different line of your paper. Think back through topics we talked about yesterday and today… –Your group should try to come up with as many

33 From Family to Factory Freewrite Knowing what you do now…what will go into your decision when buying groceries for your family?

34 Scrap Recap 1 new thing you learned 1 thing that surprised you 1 question you still have / or want to learn more about


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