Ch 9 ppt eating lower of the food chain
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Transcript of Ch 9 ppt eating lower of the food chain
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Eating Lower on the Food Chain
Shhh, girls!! I want to hear about this!
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Union of Concerned Scientists: List of Top Things You Can Do to Help
the Planet
• #1. Drive less• #2. Eat less red meat and
dairy products• #3. Conserve on heating and
cooling costs in the home
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Cow products are the worst!
• Nearly 87% of our agricultural land (50% for cows alone!) is engaged in animal production for food
I BEG YOUR
PARDON?
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U.S. Crop % that goes to feed cows
• 80 - 90% of our soybeans, oats, wheat and corn
What! You have a problem with that?
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Cow efficiency
• It takes 16 lbs of wheat to make 1 lb of cow
• 5000 gallons of water per lb of cow
• (A lb of soybeans only takes about 260 gallons of water)
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• A typical North American Diet requires twice as much water to produce as less meat-intensive diets common in Asia and Europe.
• Eating lower on food chain : same water could feed double the people
• Making animal products use ½ the water in US
• 1 dairy cow drinks about 29 gallons of water a day, and needs 40 additional gallons for sanitation, producing only 8 gallons of milk
Got Water?
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Pollution (Deep Doo-Doo!)• EPA : agricultural runoff = primary pollution source for
60% of U.S. polluted rivers and streams • Animal ag. = 130 times more than human waste and
equivalent to 5 tons per person.• AND ITS NOT TREATED BY A SEWAGE TREATMENT
PLANT!• The manure from a 200-head dairy operation produces
as much nitrogen as sewage from a town of 10,000 people!
• One dairy cow produces 120 lbs of waste a day, 12 times as much as a person
• This is a total of 22 tons per cow per year.
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Got Trees?
• Eating a plant based diet personally saves an acre of trees annually
• 260 million acres of U.S. forests have been cleared for livestock production.
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Our foreign suppliers
• Throughout Central and South America, grazing and feed grain production are the leading economic forces behind rainforest destruction.
• Every quarter lb hamburger costs Mother Nature 55 square feet of forest land!
• U.S. is the world’s top beef importer.• A fast food restaurant can claim to buy
from a U.S. supplier but suppliers are not required to declare the nation
of origin of their products.
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Got Petroleum?
• Americans consume nearly as much fossil fuels at the supermarket as at the gas pump.
• The typical American burns about 530 gallons of gas each year driving.
• Eating a meat based diet gobbles up an additional 400 gallons of oil.
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• One acre of corn requires 140 gallons of oil to produce.
• Eating corn directly maximizes the energy investment.
• If the corn goes to livestock, only about a fifth of the protein is returned as food, four-fifths is lost
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Additional tidbits
• One quarter of all antibiotics produced are used in the U.S. for food animals
• Foreign originated veggies may have been sprayed with DDT
• L.A. water is full of DDT, washed off from foreign fruits and veggies!
• DDT is stored in fat – linked to breast cancer (90% breast cancer patients have DDT in their systems)