Migrant workers process green peppers on Uesugi Farms in Gilroy, CA on Wednesday, Aug. 28, 2013. Photo by Bob Nichols/USDA.
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.
