http://news.trust.org/item/20180918083629-d2wf0/

What we choose to eat,  how we move around and how these activities contribute to climate change is receiving a lot of media attention. In this context, greenhouse gas emissions from livestock and transport are often compared, but in a flawed way.

The comparison measures direct emissions from transport against both direct and indirect emissions from livestock. The Intergovernmental Panel on Climate Change (IPCC) identifies and monitors human activities responsible for climate change and reports direct emissions by sectors. The IPCC estimates that direct emissions from transport (road, air, rail and maritime) account for 6.9 gigatons per year, about 14% of all emissions from human activities. These emissions mainly consist of carbon dioxide and nitrous oxide from fuel combustion. By comparison, direct emissions from livestock account for 2.3 gigatons of CO2 equivalent, or 5% of the total. They consist of methane and nitrous oxide from rumen digestion…