Corn ethanol never made any sense, either economically or environmentally. Congress is finally killing corn ethanol subsidies, but it shouldn't abandon ethanol entirely. Made from the fiber of plants and with a really good energy balance, cellulosic ethanol is the better alternative.
The Think electric car has been through four bankruptcies, but this one looks terminal. There's a lesson in this--start-up EVs priced higher than volume leaders like the Chevrolet Volt and the Nissan Leaf are going to have a tough time in the marketplace.
Automakers and environmentalists are in a battle royal over not just a federal fuel economy standard (greens want 62 mpg, the industry will settle for 47) but over how it will affect future sales. Lions don't lie down with lambs, so don't expect a happy resolution with everybody singing "Kumbaya."
From a perch in the cloud, Watson-like supercomputers could offer solutions for clueless drivers, including finding that sushi restaurant whose name you forgot, or that song by the guy who sounds kind of like Bob Dylan.
The new fuel economy window stickers are out, minus the big, fat letter grades that would have made it especially easy for consumers. But at least the replacements have plenty of other information.