In case you thought we were just kidding when we wrote to Al Gore urging him to go vegetarian to help stop global warming, maybe this ad will clarify our position for you.

The evidence is in, and though it may be a little inconvenient for Mr. Gore to hear, the facts don’t lie. This U.N. report shows that animals raised for food generate more greenhouse gases than all cars and trucks combined, and goes on to say that meat is "one of the top two or three most significant contributors to the most serious environmental problems, at every scale from local to global," including land degradation, air pollution, water shortage and pollution, loss of biodiversity, and of course climate change. And according to a recent University of Chicago study, switching to a vegan diet is more effective in countering global warming than switching from a standard American car to a Prius. We even went so far as to offer to cook him faux “fried chicken” as an intro to vegetarian meals, since, no matter how many of those cool little energy saving light bulbs you put in, the reality is that there just isn’t such a thing as a meat-eating environmentalist.

This story about the whole issue ran in The New York Times today, but Gore declined to comment. Mr. Gore, you’ve done so much good by putting yourself out there as the face of the anti-global warming movement, and you’re so right on so much of it, but come on, it really is high time to put some substance behind it by leading by example and doing the single most effective thing you can do to address the issue: simply going vegetarian.