Worldwide tonnes of CO2 eq emitted by animal agriculture and other sectors since you opened this page:
222,016 beef
189,358 dairy cattle
59,441 pigs
54,992 buffalo
54,458 chickens
45,585 other animals
628,852 total by animal agriculture
107,602 total by transportation*
192,147 total by electricity generation*
304,442 total by all other human activities*
* emissions not related to animal agriculture
Sources : Livestock and Climate Change, by Robert Goodland and eff Anhang, 2009
Tackling Climate Change through Livestock, FAO of the United Nations, 2013
Tackling Climate Change through Livestock, FAO of the United Nations, 2013