http://www.physorg.com/news150472856.html
"This new production method uses ethanol which is produced by the fermentation of crops and is therefore carbon neutral meaning any carbon dioxide produced is assimilated back into the environment and used by plants to grow."
This is misleading. Most ethanol production is from corn, which has been shown to be quite inefficient... fertilizers, high water usage, and the fossil fuel to grow it. All of which have a high carbon footprint.