…is a vegan diet. Well, at least it is according to Joseph Poore. But I have an alternative suggestion. The single biggest way to reduce your impact on planet Earth is to stop thinking there’s a single biggest way to reduce your impact on planet Earth, or that bang for your buck metrics of this kind are helpful in formulating how best to live.
Here, I’ll elaborate that suggestion, grounding the discussion in the debate about veganism versus livestock farming. The debate gets a lot of airtime, and I’ll only touch lightly on a few aspects of it here. I say a little more about it in Chapter 8 of my book A Small Farm Future. As is often the case, it’s potentially endless, because the assumptions people bring to it and the contexts they apply them to are different. But hopefully I can at least clarify a few of those assumptions and contexts here.
Poore co-authored a widely-publicized paper a couple of years back that argued livestock products from even the best performing commercial farms have higher impacts across various environmental indicators than their vegetable counterparts (eg. each gramme of protein from beef has a higher impact on greenhouse gas emissions, land use, soil acidification, water eutrophication and scarce water drawdown than a corresponding gramme of protein from pulses). There are some aspects of the paper I’d quibble with, but by and large I don’t think there’s anything that’s demonstrably incorrect factually about the claims it makes (I can’t honestly say the same about some of Poore’s wider claims reported in the media).
…click on the above link to read the rest of the article…