By Charlie Deitz
http://stream.publicbroadcasting.net/production/mp3/wamc/local-wamc-916814.mp3
Greenfield, MA – Borrowing from a growing trend in the U.K., a Pioneer Valley energy co-op broke ground this week on a biodiesel plant. WAMC's Berkshire Bureau Chief Charlie Deitz reports the new plant will generate more than 3 million gallons of sustainable bio-diesel every year