For those confused by the graph at the bottom: Plants are inputs as feed to chickens. That’s the starting point this is using and comparing the losses to
Even if we include transport and processing and use worst cases of those, the efficiency is still massively improved by eating plants
Transport is a small contributor to emissions. For most food products, it accounts for less than 10%, and it’s much smaller for the largest GHG emitters. In beef from beef herds, it’s 0.5%.
Not just transport, but all processes in the supply chain after the food left the farm – processing, transport, retail and packaging – mostly account for a small share of emissions.