The Biofuel Economy, part 3: switchgrass and solid fuel

Solid fuel isn't a sexy technology, but it's amazingly energy efficient. In fact there's really no comparison. The amount of energy you get burning corn in a corn stove, say, is way more than you’d get out of ethanol from the same corn. But the United States has always been a liquid fuel economy. Our infrastructure and our government subsidies reflect that. And so with alternative energy, liquid fuels like ethanol and biodiesel get a lot more attention. It's different in Europe. Now many farmers are looking across the Atlantic to find solutions for the North Country. Gregory Warner reports.