Cash Cows
EPA and its partners have released guidance that can help farmers manage livestock waste and boost farm earnings while reducing greenhouse gases. Processing livestock manure under controlled conditions can produce biogas, a source of greenhouse gas emissions. Farmers also benefit because the biogas can be used to generate electricity.
"Using biogas has multiple benefits; it decreases greenhouse gas emissions, produces renewable energy for rural communities, and safeguards local air and water quality," said Bill Wehrum, EPA's acting assistant administrator of Air and Radiation. "This guidance will help farmers and potential investors make informed choices about which systems work best for farms, for profits, and for our environment."
Biogas is made up of methane and carbon dioxide. Because methane is more than 20 times as potent as carbon dioxide at trapping heat in the atmosphere, capturing biogas provides significant environmental benefits. Also, farmers and project developers can increase their incomes by using biogas for on-site electricity generation or delivery to a local electric utility.
Waste methane recovery systems, also known as anaerobic digestion systems, are estimated to be feasible at about 7,000 dairy and swine operations in the United States. In 2005, about 110 systems were operational or under construction, and another 80 were in the planning stages.
The standardized guidance was developed jointly by EPA's AgStar program, the Association of State Energy Research and Technology Transfer Institutions, and USDA. The guidance will provide a standardized method that will allow farm operators and investors to compare the effectiveness of available waste methane recovery systems.
AgStar is a voluntary program that encourages the use of waste methane recovery systems on dairy and swine farms. Each year, these systems have reduced methane by about 1.5 million metric tons of CO2 equivalent, while providing enough renewable energy to power over 20,000 average American homes. The program also assists countries throughout the world in developing biogas recovery projects through the Methane to Markets Partnership.
Information on the AgStar Protocol: http://www.epa.gov/agstar/resources/protocol.html General information on Methane to Markets Partnership: http://www.epa.gov/methanetomarkets
2 comments:
Funny thing about this post, just last night I was watching at "tivo'd" (not really tivo though, just microsoft media center edition that runs my TV) episode of the discovery channel show Dirty Jobs with Mike Rowe and his segment was on a company that made "CowPots". This farmer is doing exactly what is mentioned in this article. He harvests the crap, biodigests it, uses the gas to heat his house and barns, then turns the poo into organic pots for plants. Check him out at http://www.freundsfarmmarket.com/cowpots/story.html and you have to see the clip on Dirty Jobs, it is freakin hilarious to watch them cleaning out a digester pump...mmmm, fermented pooo!
Thanks! All I have to add to that is that I tried to burn a buffalo (bison) pie when in Yellowstone with my wife. She was very grossed out as I arrived in the campsite from the hills with a 5 pound pile in my hands. I'm guessing it wasn't dried enough, because it didn't burn too well.
I like the site and might have to get a shirt.
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