Why it's green to go veggie

Raising cattle is one of the most damaging components of agriculture*4. They cause the most environmental damage of any non-human species through over-grazing, soil erosion, desertification and tropical deforestation for ranches, in addition to their gaseous emissions and manure products. Studies on world food security estimate that an affluent diet containing meat requires up to 3 times as many resources as a vegetarian diet*5.

(Vegetarian Society http://www.vegsoc.org/environment/index.html )

A good reason for me to try harder to go back to being vegetarian, or at least a more responsible meat and fish-eater. The best reason, prehaps.