Diets high in animal products have increased negative environmental outcomes regardless of production, sourcing, calories or metrics
This paper uses data on the real life (as opposed to modelled) dietary practices of vegans, vegetarians and meat eaters to compare environmental impacts across all major environmental measures. The paper links one of the largest datasets available on the true dietary practice of different self-identified dietary groups (vegan, vegetarian, meat eater etc.), with data on the environmental impact of 589 foods across ten environmental measures from 570 life-cycle assessments.