Fossil Fuels vs. Alternative Energy

Fossil Fuels considered to be less harmful than oil, but still limited in supply. Examples of Fossil Fuels: Petroleum (oil); Used to fuel vehicles and Coal (use in Powers electricity plants). Alternative Sources of Energy options to replace fossil fuels. Solutions to solve environmental problems: Reduce carbon emissions  and Lowers other greenhouse gases. The problem is fossil fuels are non-renewable. They are limited in supply and will one day be depleted.