The report states with high confidence that balanced diets featuring plant-based, and sustainably-produced animal-sourced, food “present major opportunities for adaptation and mitigation while generating significant co-benefits in terms of human health”.

I think this says it all. The consumption is not as much of a problem as production. They don't mention how much forest is also cut to build farms and it's not like plant growing industry is any better in terms of emissions [1] and water / land poisoning with pesticides and GMO plants. Now, don't get me wrong, I have nothing against GMO that is done well, but the current direction that's only serving corporate greed instead of bettering farming industry is just disgusting. Without animals we are just as equally doomed as we are with them [2]. I also have a feeling that they're trying to optimize the 1% instead of tackling real problems caused by coal energy, cars, airplanes etc.

[1] https://agreenerworld.org/a-greener-world/it-wasnt-the-cows-...

[2] https://youtu.be/vpTHi7O66pI