It's frustrating how often I read "What you can do about global warming"-style articles that don't mention vegetarianism. So I'm happy that Rajendra Pachauri, chairman of the UN Intergovernmental Panel on Climate Change, is now highlighting meat production's role in climate change in his speeches.

UN data says that meat production accounts for about 18% of worldwide greenhouse gas emissions, topping even transportation, which accounts for 13% of worldwide emissions. The UN included all aspects of meat production, when arriving at the 18% figure: clearing land, creation and transportation of fertilizers, burning fuels in farm vehicles, and the emissions coming directly from cows and sheep.