In 2019 over 11,000 scientists signed the 'World Scientists’ Warning of a Climate Emergency'. It
notes the '[p]rofoundly troubling signs' of increases in 'ruminant livestock populations' and 'per capita meat production'. It continues: 'Eating mostly plant-based foods while reducing the global consumption of animal products, especially ruminant livestock, can improve human health and significantly lower GHG emissions. Moreover, this will free up croplands for growing much-needed human plant food instead of livestock feed, while releasing some grazing land to support natural climate solutions.' A 2021
follow-up warning signed by almost 14,000 scientists advocated 'switching to mostly plant-based diets' to tackle the climate crisis.
What would they know? Perhaps at least as much as the 800 or so agricultural and food scientists who signed the 'Dublin Declaration', many (most, all?) of whom work for or with the animal agribusiness industries and have no expertise in environmental sciences, ecology, climatology, conservation sciences or any of the relevant fields needed to assess the environmental impacts of different forms of food production. In any event, Poore & Nemecek is just one of many studies documenting the environmental need to move towards a more plant-based diet. It's just more cited than the others because it's the largest scale study on the question to date. To present it as a tobacco-funded or Wakefield-like dodgy outlier is a complete inversion of reality. Its the meat industry acting as
merchants of doubt in this space, not environmentalists.