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Understand the pros and cons of various energy sources like solar, geothermal, nuclear, wind, biomass, hydro, and fossil fuels. Learn about their impact on the environment and sustainability.
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non polluting • free can’t be placed everywhere heat from Earth’s center renewable • non polluting • free not reliable (cloudy, night) Sun (nuclear fusion) perpetual heat released when atoms split/fused • non polluting air • not expensive waste is radioactive nonrenewable not always windy (unreliable) uneven heating of the Earth • non polluting • free perpetual • easily found • free • renewable plant waste burned to release energy pollutes the air as it burned renewable formed from ancient plants • cheap • lots of it in USA pollutes the air as it burned nonrenewable dammed up water is released • non polluting • free water changes ecosystems renewable