"Still, as evidence mounts that cutting back on beef would both improve our health and help stave off global warming, a campaign urging people to do so is clearly in order. It's understandable why political candidates are wary of bashing beef, but less understandable why environmental leaders with nothing to lose are reluctant to raise the issue. They would be more credible in targeting polluters if they were equally assertive in pointing out what all Americans can do to fight global warming, and at the very top of that list -- way ahead of more commonly mentioned approaches such as buying fluorescent lightbulbs or energy-efficient appliances -- would be eating less red meat."