On the surface there appear to be many eco-benefits in replacing oil with a biofuel with the properties of being environmental friendly and having low carbon gas emissions similar to ethanol.
For a start the crops from which ethanol is derived are commonly grown agricultural products such as corn, rapeseed and sugarcane; they can justly be called renewable as new crops are planted and harvested annually.
The claim is that ethanol does not contribute to global warming since it will only emit back into the environment the carbon dioxide that the original source plant initially absorbed out of the atmosphere.
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