Producing more energy from cow manure could help reduce greenhouse gas emissions.

At the climate summit in Copenhagen, U.S. Agriculture Secretary Tom Vilsack announced an agreement with U.S. dairy producers to accelerate adoption of innovative manure to energy projects on American dairy farms.

“This historic agreement, the first of its kind, will help us achieve the ambitious goal of drastically reducing greenhouse gas emissions while benefiting dairy farmers,” Vilsack said from Copenhagen. “Use of manure to electricity technology is a win for everyone because it provides an untapped source of income for famers, provides a source of renewable electricity, reduces our dependence on foreign fossil fuels, and provides a wealth of additional environmental benefits.”

Under the agreement, USDA intends to increase the number of anaerobic digesters supported by USDA programs. Beyond promoting the digesters, the agreement will encourage research, and development of new technologies to help dairies reduce greenhouse gas emissions. Anaerobic digester technology is a proven method of converting waste products, such as manure, into electricity. The technology utilizes generators that are fueled by methane captured from the animal manure. Currently, only about 2 percent of U.S. dairies that are candidates for a profitable digester are utilizing the technology. Dairy operations with anaerobic digesters routinely generate enough electricity to power 200 homes.