Bert Castelannelli stands atop a covered lagoon that traps methane gas from the dairy near Lodi he managed in 2004. The methane gas was converted into electricity and sold back to PG&E.
Bert Castelannelli stands atop a covered lagoon that traps methane gas from the dairy near Lodi he managed in 2004. The methane gas was converted into electricity and sold back to PG&E. Jay Mather Sacramento Bee file
Bert Castelannelli stands atop a covered lagoon that traps methane gas from the dairy near Lodi he managed in 2004. The methane gas was converted into electricity and sold back to PG&E. Jay Mather Sacramento Bee file

‘Greener’ cows can cut carbon emissions at dairies

December 29, 2015 04:00 PM