Biofuels contribute little or no carbon dioxide to the buildup of greenhouse gas emissions. Converting biomass to biofuels is an environmentally friendly process. So is using biofuels for transportation. When using bioethanol instead of gasoline, atmospheric carbon dioxide may be reduced in three ways:
1. Avoiding the emissions associated with gasoline
2. Allowing the carbon dioxide content of the fossil fuels to remain in storage; and
3. Providing a mechanism for carbon dioxide absorption by growing new biomass for fuels. Because of their compatibility with the natural carbon cycle, biofuels offer the most beneficial alternative for reducing greenhouse gases from the transportation sector.
"Carbon, the fourth most abundant element in the universe, is the building block of life.”