Clean energy sources research

The output of gasoline is environmentally unhealthy from the oil spills and gas leakage. The United States is the leading advocate to discourage the use of fossil fuel energy. Perhaps, renewable sources of energy are best prescribed for human consumption, the environment, and the ecosystem. When the energy is consumed, it is converted into other sources of energy as by-products hence the continuation of the food chain ecology. The United States consumes much of the renewable source's energy like ethanol (Schwietzke, 2009). The fuel can provide motive power to run pieces of machinery combined with diesel energy. However, the production and extraction of the hydrogen energy from other compounds are relatively expensive since it does not freely exist in the atmosphere on its own.