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Meat and the Environment

Human Nutrition

Marie Gustafson

on 8 March 2013

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Transcript of Meat and the Environment

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli And the Environment Meat There are over 7 billion people on this planet...and the population is growing

We need to find a way to feed the world without damaging it further Deforestation Cutting down woods areas for pastures

Amazon Rainforest: Grassland Destruction Crops are grown on 6.2 millions square miles

That is the size of South America Water Use Humans use half of the available fresh water

Animals used for meat produce are one of the highest users of our water

The average diet of a person in the use US 4,200 gallons of water per day
The average vegan diet only uses 300 gallons per day Climate Change Climate change is fueled by the consumption of energy "Food Inc." -2008 Producing meat is destructive It is also inefficient: "...about two to five times more grain is required to produce the same amount of calories through livestock as through direct grain consumption...It is as much as ten times more in the case of grain-fed beef in the United States." Millions of people are starving and/or malnourished
Land and resources used to feed animals outweigh those to feed humans
"30% of the world's ice-free land is directly or indirectly involved in livestock production."
Over 70% of grain in the U.S. is fed to livestock Not all food that is produced is used Waste of food doesn't only waste calories... Harmful Effects
Higher amount of carbon in the atmosphere
Loss of biodiversity Action being Taken Since 2005 deforestation rates have declined
Bali Climate conference
Brazilian organizations hope to completely end deforestation by 2015
National Wildlife Foundation Pastures use 11.6 million square miles of land

That is the size of Africa! Harmful Effects
Loss of biodiversity
Monocultures 840 millions of the world's remain undernourished and one way to prevent this is to produce more food using less water. Water Pollution Livestock farms have created more than 130 times the amount of waste caused by people

This has polluted more than 27,000 miles of rivers and groundwater Waste enters the water from:
Leaking manure lagoons
From farmers spreading too much manure

Increased nitrate in groundwater (due to animal waste) can cause Blue Baby Syndrome

Cryptosporidium - microorganism found in animal waste
Milwaukee water supply Baltic Sea Algae Bloom Nutrients are entering our water ways and causing large scale algae blooms

Baltic Sea- one of the largest aquatic dead zones Manure contains ammonia- highly toxic to fish Air Pollution Decomposition of animal waste creates air pollutants like hydrogen sulfide and ammonia
causes respiratory problems such as asthma and lung inflammation Methane gas - created by animal waste
Greatly contributes to global warming Livestock have hidden costs most never think about Livestock is a very inefficient use of energy Methane gas is a direct contributor to climate change. What can you do? "Certified." "Free Range" "Free Roaming" "Fresh" "Natural" "No growth hormones" "Chemical-free" Brands Brands to Avoid:
Tyson, Smithfield Foods Inc., ConAgra, Pilgrim's Pride

Brands with Plans to Improve
McDonald's, Burger King, Cracker Barrel, Compass Group, Wendy's, Hellman's, Krispy Kreme, Sara Lee, Kraft Foods. CLICKER QUESTION TIME Which continent is comparable in size to the amount of square miles used for pastures on our planet?
a. North America
b. Antarctica
c. South America
d. Africa Clicker Question #2 1 ton of methane has the global warming equivalent of ______ tons of carbon dioxide
a. 5
b. 13
c. 23
d. 86
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