Sentences with phrase «smaller than ethanol»
«Wind power's ecological footprint is so small — a million times smaller than ethanol's — that if all the cars driven in the United States were battery - electric, they could be fueled by wind turbines whose total land footprint, not counting spacing in between, takes up less than 1.2 square miles, Stanford University environmental engineering professor Mark Jacobson found.»
http://www.realclimate.org/ Not exact matches
The expo will draw more than 40 college teams from all over the country to showcase the future of sustainable technology and will feature exhibits like generation of ethanol from coffee production wastewater and entrenching small glass spheres in house paint to deflect heat in the summer.
Far from having a substantial impact on reducing net emissions of GHG, Wolf says, European rapeseed oil - based diesel and U.S. corn - based ethanol have in fact only made small contributions - 13 % less than conventional diesel and 18 % less than petrol, respectively.
This implies that burning ethanol still contributes to global warming gasses — but to a slightly smaller extent than gasoline.
(1) Feedstock other than corn; (2) Decentralized network of small advanced biofuel manufacturing facilities; (3) Variable blending pumps in lieu of splash blending; and (4) Hydrous ethanol.