In Oakland, California, the East Bay Municipal Utility District's main wastewater treatment plant was the first sewage treatment facility in the nation to convert post-consumer food scraps to energy via anaerobic digestion. This photo was taken on May 13, 2014.
Migrant workers process green peppers on Uesugi Farms in Gilroy, California, in 2013. Photo by Bob Nichols/USDA.
