Sustainable energy
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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 effec
A woman in rural Rajasthan, India, collects firewood. The use of wood and other polluting fuels for cooking causes millions of deaths each year from indoor and outdoor air pollution.
A photovoltaic power station in California, United States
Wind turbines in Xinjiang, China
Guri Dam, a hydroelectric dam in Venezuela
Renewable energy
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Renewable energy is energy made from renewable natural resources that are replenished on a human timescale. The most widely used renewable energy types are solar energy, wind power, and hydropower. Bi
Sustainable energy
…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 wind, hydro, solar, and geothermal energy can cause environmental damage but are generally far more sustainable than fossil fuel sources…
A small, rooftop PV system in Bonn, Germany
Komekurayama photovoltaic power station in Kofu, Japan
Burbo, NW-England
Sunrise at the Fenton Wind Farm in Minnesota, United States