> If you want to attack CO2 costs, the primary costs are in the last mile. If you want to attack CO2 costs, 90% of lamb's CO2 production occurs on the farm. On

> If you want to attack CO2 costs, the primary costs are in the last mile. If you want to attack CO2 costs, 90% of lamb's CO2 production occurs on the farm. Only 10% is from processing, distribution, retail, cooking, and waste disposal [1]. Let's charitably assume 1/3 of the post-farm CO2 emissions are from distribution and half of those could be saved by producing closer to the point of consumption. So farm production only needs to be 1.8% (=(10/3/2)/90) more efficient in NZ for it to be net beneficial. Presumably NZ is particularly efficient for lamb, otherwise it wouldn't be such a major export. [1] To pick one reasonably creditble data source, see: https://en.wikipedia.org/wiki/Environmental_impact_of_meat_production#cite_note-meat_eaters_guide-56 https://en.wikipedia.org/wiki/Environmental_impact_of_meat_p... which ends with this graph: https://s3-us-west-2.amazonaws.com/webcitation/419e58a77a34f10d258e827ef20e23c991d33480 https://s3-us-west-2.amazonaws.com/webcitation/419e58a77a34f...