How about we don't change the diet but change where the food comes from? When talking about meat and damage to the environment, the only relevant figures are the ones associated with animal feed (e.g. water consumption per kg of meat). Pastured animals, by definition, don't eat feed coming from the monoculture industrial agriculture that is depleting the soil and consuming all those resources, and which is also used…
> When talking about meat and damage to the environment, the only relevant figures are associated with animal feed (e.g. water consumption per kg of meat). Cows fart.
And it's not nearly as dangerous as publicized.
Methane's lifespan in the atmosphere is much, much lower (think two orders of magnitude) than carbon dioxide [0], for example.