I have changed what I eat because of the now overwhelming evidence of global environmental damage caused by meat and dairy production. It produces more climate-warming emissions than all cars, trains, ships and planes combined. If the world’s diet doesn’t change, we simply can’t beat climate change.
This is an invention of those who would change our diets anyway. Look back to the basic emissions pathways underlying everything. Standard technological advance and economic growth – the A1T scenario – leave climate change as a trivial problem to be ignored. We really don’t need radical anything – and we’ve already done more than enough to bump technology over to this pathway anyway.