RENEWABLE ENERGY SOURCES - A KEY TO PROTECT ENVIRONMENT: A REVIEW

Abstract

Reducing of fossil fuel sources and consequences of environmental problems arising from their consumption  makes  man  to  look  for  alternative  energy  sources including  renewable  energy sources.  High consumption of fossil resources in the world is a warning for the necessity of exploiting the available abundant renewable resources such as solar energy, wind, geothermal and small hydro power plants. Therefore instead of growing reliance on declining underground resources, it must invest for the development of renewable energy utilization. Sun is the source of all energies. The primary forms of solar energy are heat and light. Sunlight and heat are transformed and absorbed by the environment in a multitude of ways. Some of these transformations result in renewable energy flows such as biomass and wind energy. Renewable energy technologies provide an excellent opportunity for mitigation of greenhouse gas emission and reducing global warming through substituting conventional energy sources. This paper aims to review on renewable energies such as solar energy, wind and bioenergy and their applications and the study also suggested some measures and policy recommendations which when considered would help achieve the goal of renewable energy thus to reduce emissions, mitigate climate change and provide a clean environment as well as clean energy for all and future generations.