BIOMASS

Biomass is one of the most important and has been the largest U.S. renewable energy source every year since
2000. It is a sustainable energy that has enriched the United States and the world. It currently provides the only renewable alternative for liquid transportation fuel while avoiding highly toxic fuel additives Current biomass uses include ethanol, biodiesel, biomass power, and industrial process energy.

It's use strengthens rural economies, by creating jobs locally for growing, harvesting, storing, and transporting biomass products as well as building and running biorefineries.

Biomass feedstocks include all plant and plant-derived material, easily processed agricultural crops such as corn, clover, straw, fast-growing trees and grasses, algae, mill and forestry residues and agricultural residues, as well as urban wood wastes.

Once again it only makes sense to use all of these renewable energies together to live within a healthy circle of life that can renew and sustain itself naturally while decreasing dependence on petroleum and other non renewable resources and thereby reducing greenhouse gas emissions by reducing air and water pollution

http://www.eere.energy.gov/afdc/altfuel/biodiesel.html
http://energysavingnow.com/biofuels/
http://www.eere.energy.gov/RE/biomass.html
http://www.ncsc.ncsu.edu/energy_primer/biomass_energy.cfm
http://www.ncsc.ncsu.edu/energy_primer/biofuels.cfm