Conning Michigan

President Obama did a promotion in Michigan a few days ago.

Standing at a podium in a muddy construction site, Obama celebrated the groundbreaking of an advanced car battery factory that the White House predicts will produce 300 permanent jobs. It was his fourth battery-related trip as president, and it came as the White House makes an aggressive push to tell what one senior official called "the battery story" -- the tale of a small piece of technology that could affect daily life and spur employment if properly nurtured.

But the administration's $2.4 billion investment in the development of batteries and other electric-car technology in the United States is an enormous bet on a product that has yet to gain broad commercial success. [Emphasis added]

I wonder what the carbon footprint of that trip was.