<P> Alternative energy is any energy source that is an alternative to fossil fuel . These alternatives are intended to address concerns about such fossil fuels , such as its high carbon dioxide emissions , an important factor in global warming . Marine energy , hydroelectric , wind , geothermal and solar power are all alternative sources of energy . </P>
<P> Alternative energy is any energy source that is an alternative to fossil fuel . These alternatives are intended to address concerns about such fossil fuels , such as its high carbon dioxide emissions , an important factor in global warming . Marine energy , hydroelectric , wind , geothermal and solar power are all alternative sources of energy . </P>
what is the need for exploring alternative sources of energy
what is the need for exploring alternative sources of energy
to address concerns about such fossil fuels , such as its high carbon dioxide emissions , an important factor in global warming
to address concerns about such fossil fuels , such as its high carbon dioxide emissions , an important factor in global warming