Biofuels are fuel having energy from geologically recent carbon fixation which are produced from living organisms. Carbon fixation exists in plants and micro algae. These fuels are produced from a biomass conversion.
Biofuels are promising potential great solution. Cars are a major source of atmospheric carbon dioxide, the main greenhouse gas causing global warming. As plants can absorb carbon dioxide with their growth, crops grown for biofuels should suck up about as much carbon dioxide as comes out of the tailpipes of cars that burn these fuels. And unlike underground oil reserves, biofuels are renewable resources. Because, we can always grow more crops to convert it into fuel.