A new petition seeks to end the Rural Energy for America Program’s support for on-farm digesters, which environmental ...

CHICAGO -- A unique climate change fighting machine is being used to divert thousands of pounds of food waste from landfills, as well as feed people and heat city homes in a clean and sustainable way.

Anaerobic digestion is the most common process used to reduce sewage sludge volume in the world. Digestion is a low-tech treatment process which has two high-volume byproducts which are relevant to ...

CASA GRANDE — Thousands of gallons of liquid manure sit in the open on 25-foot deep settling ponds at Casa Grande Dairy Co. Farm owner Jim Boyle says he could earn some extra revenue by taking biogas, ...