Alternative Energy Research Paper Outline

Criticisms directed at large-scale hydroelectric plants include: dislocation of people living where the reservoirs are planned, and release of significant amounts of carbon dioxide during construction and flooding of the reservoir.However, it has been found that high emissions are associated only with shallow reservoirs in warm (tropical) locales, and recent innovations in hydropower turbine technology are enabling efficient development of low-impact run-of-the-river hydroelectricity projects.Sustainable energy sources can be used to generate electricity, to heat and cool buildings, and to power transportation systems and machines.Costs of sustainable energy sources have decreased immensely throughout the years, and continue to fall.

In general, renewable energy sources such as solar energy, wind energy, geothermal energy, and tidal energy, are widely considered to be sustainable.

If the biomass source is agricultural or municipal waste, burning it or converting it into biogas also provides a way to dispose of this waste.

Use of farmland for growing fuel can result in less land being available for growing food.

It represents those renewable energy resources and technologies that provide the highest environmental benefit. When referring to sources of energy, the terms "sustainable energy" and "renewable energy" are often used interchangeably, however particular renewable energy projects sometimes raise significant sustainability concerns.

Renewable energy technologies are essential contributors to sustainable energy as they generally contribute to world energy security, reducing dependence on fossil fuel resources, Various Cost–benefit analysis work by a disparate array of specialists and agencies have been conducted to determine the cheapest and quickest paths to decarbonizing the energy supply of the world, with the topic being one of considerable controversy, particularly on the role of nuclear energy.

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