Unconventional oil and gas production using hydraulic fracturing generates significant quantities of wastewater that may contain potentially harmful pollutants. The concerns associated with shale gas development necessitate an investigation of shale gas water and wastewater management using a...

Despite several decades of government policies to promote energy efficiency, estimates of the costs and benefits of such policies remain controversial. At the heart of the controversy is whether there is an "energy efficiency gap," whereby consumers and firms fail to make seemingly positive net...

The electricity sector is responsible for roughly 40 percent of U.S. carbon dioxide (CO2) emissions, and a shift away from conventional coal-fired generation is an important component of the U.S. strategy to reduce greenhouse gas emissions. Toward that goal, several proposals for a clean energy...