President Obama has reportedly decided on his second-term nominees to head the Environmental Protection Agency and the Department of Energy. Reuters reports Obama has tapped air quality expert Gina McCarthy to replace Lisa Jackson at the EPA. McCarthy currently serves as assistant administrator for the EPA Office of Air and Radiation. The nuclear physicist Ernest Moniz, meanwhile, is reportedly the pick to head the Energy Department. A former undersecretary of energy under President Bill Clinton, Moniz currently heads the Energy Initiative at the Massachusetts Institute of Technology. The group Food and Water Watch has started a petition against Moniz’s potential bid, citing his support for the gas drilling process known as hydraulic fracturing, or fracking.