1. The Beef Industry: Role in Climate Change
By Ashley warner

2. Meat the Truth
In 1 year, a cow in the Netherland’s will produce just as many green house gas emissions as a car that drives 70,000 km, equivalent to driving 1.5 times around the globe.
Half of global wheat harvest is used to feed livestock.
To produce animal products, 10x more land is needed than to produce vegetable products.
U.S. factory farming of meat uses 1/3 of fossil fuels generated in the U.S.

3. Meat the Truth
How much can a reduction in meat consumption contribute to carbon savings?
If all U.S. residents cut meat intake by:
7 days = 700 Mt of greenhouse gas emissions ~ remove all cars from the road in America
6 days = total electricity use of all U.S. households
5 days = carbon savings equivalent to planting 13 billion trees and letting them grow for ten years ~ 43 trees per American
4 days = half the domestic use of all electricity, gas, oil, petrol, and kerosene in the U.S.
3 days = 300 Mt greenhouse gas emissions ~ greater impact than if all cars in the U.S. are replaced by Prius
2 days = replacing all household appliances with energy efficient appliances
1 day = 90 million plane tickets from New York to Los Angeles

4. 3 Beef Production Systems
CONVENTIONAL – finished in feedlots with growth- enhancing technology (steroids, hormones, antibiotics, etc.). Majority of beef operations.
NATURAL – finished in feedlots without growth- enhancing technology
GRASS-FED – forage-based diet from birth to slaughter without grain or other non-forage supplementation. No growth-enhancing technology

5. Study
Environmental impact calculated by comparing annual resource inputs and waste output of each beef production system.
Expressed per 1 billion kg of beef produced in 365 days
Calculated using AMTS Cattle Pro software. Computer modelled result.

6. Results

7. Results with Comparisson

8. Production System Comparisson
Conventional
Natural
Grass-fed
Average slaughter weight 569 kg
Lifespan 444 days
7,046,000 cows to produce 1 billion kg of beef
Transported ~483km between sub-system, 161km to slaughterhouse (644km)
Feed transport ~558km
Average slaughter weight 519 kg
Lifespan 464 days
8,257,000 cows to produce 1 billion kg of beef (17.1% increase)
Transported ~644km
Feed transport ~558km
Requires 22.4% more land than CON
17.9% increase in water use
Average slaughter weight 486 kg
Lifespan 679 days
12,510,000 cows to produce 1 billion kg of beef (77.5% increase)
Transported ~161km from farm to slaughterhouse
No feed transport
Requires 80.8% more land than CON
302% increase in water use
67.5% increased carbon footprint compared to CON

9. Questions?

10. Discussion
What beef production system do you think is the best option? Why?
Do you think beef is a sustainable food source?
The outcome of the study concludes conventional beef production systems as the most sustainable method in beef production. In this scenario, how do you feel about consuming beef that has been treated with growth-enhancing technology?
Should the beef industry continue to intensify and improve productivity using conventional methods, to feed increasing population or adopt extensive production systems such as grass- fed methods? Other possible solutions?
Do you have a problem with the way cows or animals are treated during factory farming practices?

11. References
Capper, Judith L. 'Is the grass always greener? Comparing the environmental impact of conventional, natural and grass-fed beef production systems', animals, vol. 2/no. 2, (2012), pp
United states. Congress. House. Committee on agriculture. Subcommittee on livestock, dairy, and poultry ( ). , 'Hearing to review the state of the beef industry: hearing before the subcommittee on livestock, dairy, and poultry of the committee on agriculture, house of representatives, one hundred twelfth congress, first session, April 6, 2011', anonymous translator(, Washington, U.S. G.P.O, 2011).