Paul: Here is a good report linked to your question:

https://ourworld.unu.edu/en/eating-less-meat-essential-to-curb-climate-change-says-report

Please have a look at this useful RG link.

Article “Eat as If You Could Save the Planet and Win!” Sustainabilit...

The article which added by Dr. Arvind is very suitable to answer the question above.

Good luck.

If we eat less, all peoples can eat enough, if we eat more many peoples stay hungry.

Raising meat animals adds lot of green house gases such as methane (CH4), carbon dioxide (CO2) and nitrous oxide (N2O) in the atmosphere.

I think it is for the preservation of livestock and the reduction of eating meat keeps human healthy without major health problems

in order to get meat to eat one can disturb biodiversity and natural resources so to save the biodiversity eating less meat may essential

Saving people has more priority than CO2 problem

Why not stop industrial meat production of poultry and beef and develop natural ways

It is a form of human food that we cannot give up due to the hungry mouths we have to feed in the world, but we must find appropriate ways of handling it in order to avoid such problems, because we know that animal feces contribute to the greenhouse effect, but I believe that this is little compared to people dying from hunger.

C'est une forme de nourriture humaine que nous ne pouvons pas abandonner à cause de la faim dans la bouche que nous devons nourrir dans le monde, mais nous devons trouver les moyens appropriés pour la gérer afin d'éviter de tels problèmes, car nous savons que les excréments d'animaux contribuent à la effet de serre, mais je pense que c’est peu en comparaison des personnes qui meurent de faim.

Very simple: If you ate just plants, the plants do not produce gases like CO2 (they absorb them instead). On the other hand, in order to produce the meat you wanted to eat, the animals are throwing into the air a lot of CO2 and methane (greenhouse gases).

Instead of eating land animals (that don't have the trace elements our bodies need), just eat sea animals that supply our bodies with the trace elements we need.