OverviewDefinitions and backgroundEnergy conservationSustainable energy sourcesEnergy system transformationGovernment policiesFinance
Energy is sustainable if it "meets the needs of the present without compromising the ability of future generations to meet their own needs." Definitions of sustainable energy usually look at its effects on the environment, the economy, and society. These impacts range from greenhouse gas emissions and air pollution to energy poverty and toxic waste. Renewable energy sources such as