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What is renewable energy?

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What is renewable energy?

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Do you know what renewable sources of energy are and why we should think of these alternative energy sources? In the past century, it has been seen that the consumption of non-renewable sources of energy has caused more environmental damage than any other human activity. Electricity generated from fossil fuels such as coal and crude oil has led to high concentrations of harmful gases in the atmosphere. This has in turn led to many problems being faced today such as ozone depletion and global warming. Vehicular pollution has also been a major problem. Therefore, alternative sources of energy have become very important and relevant to today s world. These sources, such as the sun and wind, can never be exhausted and therefore are called renewable. They cause less emissions and are available locally. Their use can, to a large extent, reduce chemical, radioactive, and thermal pollution. They stand out as a viable source of clean and limitless energy. These are also known as non-conventiona

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Renewable energy is a type of material we can replenish. Most sources of renewable energy have an endless supply. They are also very safe for the environment which means we can avoid some of the destruction that the use of other resources is creating. As our society grows and moves forward we are more dependent on the resources we have. As a result there are concerns they will one day run out.

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The United States currently relies heavily on coal, oil, and natural gas for its energy. Fossil fuels are non-renewable, that is, they draw on finite resources that will eventually dwindle, becoming too expensive or too environmentally damaging to retrieve. In contrast, renewable energy resources-such as wind and solar energy-are constantly replenished and will never run out. Most renewable energy comes either directly or indirectly from the sun. Sunlight, or solar energy, can be used directly for heating and lighting homes and other buildings, for generating electricity, and for hot water heating, solar cooling, and a variety of commercial and industrial uses.

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Renewable energy is electricity that is produced from sources that replenish themselves naturally. This includes wind, sunlight (solar), landfill and agricultural waste (biomass), the heat of the earth (geothermal), and small hydro-electric facilities. In general, renewables have lower environmental impacts than non-renewables. Renewables produces lower levels of air pollutants, wastewater, smog and acid rain, and can help reduce greenhouse gas emissions.

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Renewable energy is electricity that is produced from cleaner resources, including the sun, wind, water and organic matter. Renewable energy sources are readily replenished by nature and are a cleaner source of energy.

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