Alternative energy is derived from sources that are renewable, does not consume natural resources or harming the environment, or can replace fossil fuels like coal, natural gas and oil. Alternative energy generates electricity and heat from sources such as moving water, sun, wind, geothermal heat from the earth, biomass from plant material or waste, and biogas digestion anaerobic. Given the energy crisis facing much of the world, alternative energy is destined to become even more important area for science communicators (Berinstein 2001).
Renewable sources of energy can be recovered in ...