Written by Associated Press, posted originally on AP News. Also posted in Farm Forum, Washington Times, Society of Environmental Journalists, San Diego Union-Tribune, Bakken, Cincinnati, Chicago Council on Global Affairs.
ALBANY, Mo. (AP) — One recipe for renewable natural gas goes: Place manure from about 2 million hogs in lagoons, cover them with an impermeable material and let it bake until gas from the manure rises. Then, use special equipment to clean the gas of its impurities and ship the finished product out.