Sustainability

Fossil fuels - such as coal, natural gas, and oil - provide most of the energy used in the United States and impact the environment across geographical scales. Achieving sustainable and secure energy use requires that energy be developed from renewable and biological resources, be produced by cleaner and more efficient technologies, and be used more efficiently and with greater conservation. EPA programs encourage voluntary partnerships with industry to reduce greenhouse gas emissions. Many of EPA's clean-air regulatory and voluntary programs promote more efficient energy use and improvement of environmental quality without disrupting energy supplies. EPA's climate programs provide the approaches, methods and models to quantitatively assess the effects of global change for the people, the environment, and the economy and of the United States.