How does bioethanol reduce CO2 emissions?
Plants grow through a process called photosynthesis. They harness energy from the sun to extract CO2 from the atmosphere and water from the soil to lay down biomass. When the biomass is used to make bioethanol and the bioethanol is burned as a fuel, the CO2 is simply returned to the atmosphere. However, if fossil fuels are used in the production and transport of the crops and in the production of the bioethanol, then the Greenhouse gas savings over the life cycle of the biofuel will be reduced.
