California dairy digesters have critics, but the fact is they reduce methane. Large trucks and luxury cars are being powered by dairy cows – or to be more precise, the biogas from their manure. Yes, California farms are not only producing milk products for the world, they’re reducing greenhouse gas emissions by more than 20% on the farm and replacing fossil fuels destined for big-rig gas tanks. If the state is going to achieve its ambitious climate goals, more dairies are going to have to generate renewable natural gas with anaerobic dairy digesters. More >>
