Diet Change Beats Car Switch

(Fox News) - The folks at PETA, People for the Ethical Treatment of Animals, are calling out Al Gore, saying if he really wants to fight global warming, he should become a vegetarian.

PETA has sent Gore a letter saying giving up meat is the quickest and most effective way to combat climate change because the meat industry is one of the most significant sources of environmental damage.

PETA claims, "raising animals for food generates more greenhouse gases than all the cars and trucks in the world combined." And, it says, researchers have determined that switching to a vegan diet is more effective against global warming than switching from a standard American car to a Toyota Prius hybrid.

Gore's office told FOX News this afternoon it had not yet seen the letter.