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What is Renewable Energy?
Renewable energy is the term used to cover those energy flows that occur naturally and repeatedly in the environment - energy from the sun, wind oceans, and the fall of water. The heat from within the earth itself, geothermal energy, is usually regarded as renewable. Plant material, combustible or digestible industrial, agricultural and domestic waste materials are also regarded as renewable sources of energy. Renewable energy sources offer the hope of increasing diversity and security of supply, and of reducing harmful emissions to the environment. Some renewable energy sources (eg solar) produce no CO2 or other gaseous material at all.
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