Environmental advocates are calling a Michigan proposal to use animal and industrial waste as a source of "renewable natural gas" for power generation "flawed," and warned it could hinder the state's ability to meet its decarbonization goals. The proposal, now being studied by the Michigan Public Service Commission, would use state and federal funds to build what's being called a renewable natural gas facility. Levi Teitel, rural communications coordinator for Progress Michigan, said there is no scientific proof using anaerobic digestion -- also known as biomass -- is a cost-effective way to fight climate change. ...