Conventional energy

Energy that has been used from ancient times is known as conventional energy; Coal, natural gases, oil, and firewood are example conventional energy sources. We hope that all the conventional sources will become rare, endangered and extinct, as they produce lotts of carbon dioxide that adds to the greenhouse effect in the atmosphere. Conventional energy sources have demonstrated both extremely positive and negative consequences. These negative effect have fueled the proliferation of alternative energy sources in recent years. These traditional energy sources consist primarily of coal, natural gas and oil. They form from decaying plant and animal material over hundreds of thousands to millions of years.