By Timothy Gardner
NEW YORK (Reuters) - Switchgrass, a crop touted by venture capitalists and environmentalists alike as a next-generation ethanol feedstock, yields about five times more energy than it takes to grow it, making the plant a far more efficient fuel source than corn, a new study said.
In addition, the life cycle of the switchgrass ethanol -- which includes growing the crop, making the fuel, and burning it in vehicles -- emits about 94 percent less of planet-warming carbon dioxide than the life cycle of gasoline, said the study, published on Tuesday in the Proceedings of the National Academy of Sciences.
No comments:
Post a Comment