According to Mitloehner, the claim is inaccurate because the numbers for livestock were calculated differently from the costs of transportation figures that were factored in to the green house gas projections.
In the report, the livestock emissions included gases produced by growing animal feed; animals' digestive emissions; and processing meat and milk into foods. But the transportation analysis factored in only emissions from fossil fuels burned while driving, and not all other transport-lifecycle related factors.
