A proposal to build a mega-manure digester in a small Washington state community is sparking uproar among citizens who say the project to convert waste from dairy cows into fuel will add to the region’s already significant pollution problems.
The US Department of Agriculture (USDA) extended its moratorium on loans for anaerobic digesters — many of which are issued for large-scale farms that turn animal waste into gas — through the end of 2026 due to “persistent and escalating concerns.”
A Wisconsin biogas facility billed as climate-friendly is emitting nearly 5,000 metric tons of methane a year — equal to 30,000 gas cars. Such digesters are meant to cut emissions, but critics say leaks, pollution and hidden costs raise serious concerns.
A Wisconsin project dubbed the “world’s largest manure biogas project” emits nearly 5,000 metric tons of climate-warming methane annually, roughly equivalent to emissions from 30,000 gasoline-powered vehicles, according to state data that adds to concerns about the impacts of large-scale manure digesters.