Most people drive cars in heat their homes with petroleum, call, or natural gas. Why is it important to find alternatives for these sources of energy? What are three examples of alternatives?

Some well-known alternative fuels include biodiesel, bioalcohol (methanol, ethanol, butanol), refuse-derived fuel, chemically stored electricity (batteries and fuel cells), hydrogen, non-fossil methane, non-fossil natural gas, vegetable oil, propane and other biomass sources.

We are constantly polluting the earth what we need to do is to switch over to renewable energy, such as solar or wind power.