Biofuels can prevent Climate Change – either a little or a lot. In general, because plants and trees are the raw material for biofuels and because they need carbon dioxide to grow, the use of biofuels does not add CO2 to the atmosphere; it just recycles what was already there. However, because fossil fuels – such as natural gas and coal – are needed to make biofuels, biofuels are not quite “carbon neutral.” A recent analysis shows that corn ethanol reduces global warming emissions by 20%, and cellulosic ethanol by 85%, compared to gasoline. Biodiesel reduces greenhouse gas emissions by 41% compared to diesel fuel.

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