It's fairly obvious that going vegetarian will help animals, and now more people are realizing that it's also better for the environment. At the June, 2008 United Nations climate change convention, the head of the United Nations climate agency stated, "The best solution would be for us all to become vegetarians." On a more grassroots level, the PB&J Campaign seeks to educate the public on the environmental benefits of a plant-based diet.

Ready to make the switch? Read tips on how to go vegetarian or vegan.