Provided by the sun, the wind, the heat of the earth, the waterfalls, the tides or the growth of plants, renewable energy and do not generate little waste or emissions. They participate in the fight against the greenhouse effect and CO2 emissions into the atmosphere, facilitate the rational management of local resources, create jobs. Solar (photovoltaic solar, solar thermal), hydro, wind, biomass, geothermal energy are inexhaustible flow versus "energy stock" from fossil fuel deposits scarcity track: oil, coal, lignite, natural gas. Enter the world of renewable energy: What sources of energy? For what purposes? How to capture, transform? In what form to use?
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