statemachine writes: The USDA and farmers took part in a 5 year study of switchgrass, a native grass to North America. "Switchgrass ethanol delivers 540 percent of the energy used to produce it, compared with just roughly 25 percent more energy returned by corn-based ethanol according to the most optimistic studies." The U.S. government is also partially funding six cellulosic ethanol refineries, the first of which will be built in Soperton, GA.
I've never been canoeing before, but I imagine there must be just a few
simple heuristics you have to remember...
Yes, don't fall out, and don't hit rocks.