TURKEY, N.C.—The Align RNG biogas processing facility here is so small, you would miss it if you weren’t looking for it. Just four small silver mounds beside a massive 100-foot grain silo under which trucks drive day-in, day-out loading up with hog feed. In a landscape dominated by the infrastructure of hog and poultry farming—slaughterhouses, … Continue reading California Pays Farms to Make Biogas from Hog Waste in North Carolina, Where Locals Say It’s Fueling Pollution