We know it’s often been scoffed at but it’s true! Even Garnaut reckons so. The final report of the Garnaut Climate Change Review states in off-putting technical language that: "livestock emissions from enteric fermentation releasing methane play a large role in the emissions profile of the agriculture sector. About 34 % of the agricultural emissions of OECD countries is due to livestock emissions"*.
Or in plain language:
Cow and sheep farts account for about a third of developed countries GHG emissions from farming.