The AgriNews AgriMinute podcast: Fueling demand for American agricultural products
By James Henry
Robbie Macias, Aemetis vice president of biogas, gestures while demonstrating the strength of a dairy digester with Wickstrom Jersey Farms manager Brent Wickstrom in Hilmar, California. The digester captures methane from cow manure which generates energy in an effort to reduce greenhouse gas emissions. (AP photo/Noah Berger/AP)