'Maize-based ethanol can reduce greenhouse-gas emissions by 50%'

Engineering News
By: Leandi Cameron
28th August 2009

Newer maize ethanol facilities show that using this fuel instead of petrol can reduce greenhouse-gas (GHG) emissions by about 50%, according to the Renewable Fuels Association of the US.

“To understand the climate benefits of renewable fuels relative to fossil fuels, it is necessary to compare the life-cycle GHG emissions associated with the production and use of each type of fuel. “The total quantity of cradle-to-grave GHG emissions associated with a fuel’s production and combustion for each unit of energy delivered is often referred to as the fuel’s ‘carbon score’,” the association states in a recent report, titled ‘What Do Biofuels Displace and Why Does it Matter?’

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