Being green

Taken from http://www.guardian.co.uk/environment/green-living-blog/2009/nov/26/top-10-green-living-myths

3. What they tell you: Going veggie cuts emissions
What they don't tell you: It's true that animal products tend to have much higher carbon footprint than food produced from plants. Hence vegetarianism tends to be a good idea from an environmental point of view. The devil is in the detail, however, because certain dairy products are more "carbon intensive" than some meats. In particular hard cheese, which takes a lot of milk to produce, can have a bigger footprint per kilo than chicken. So while cutting out meat – especially beef and lamb – definitely makes ecological sense, the benefit will be reduced if you make up the calories by consuming more dairy. The most effective way to reduce the emissions of your diet is to go vegan – or as close as you can get.