By contrast, here's a concrete way to shrink the footprint: cut down on red meat by about 1/4.
As a thought experiment, the authors examine how an “all local” diet — i.e., a diet that has zero emissions between producer and eater — compares to shifts in diet in terms of greenhouse emissions. Since that is nearly impossible to achieve, they found that one could achieve equivalent reductions through the following changes:
- Reduce red meat expenditures by 24% and spend the savings on chicken
- Reduce red meat expenditures by 21% and spend the savings on a nondairy vegetarian diet
- Reduce red meat and dairy expenditures by 13% and spend the savings on a nondairy vegetarian diet