I’d encourage everyone to read this article as it’s fairly informative about the issues associated with the meat industry (in particular intensive farming).
As food security becomes a growing issue the world will have to adapt to a new diet because too much of the grains produced are consumed by animals in the meat industry. It’s funny because whilst we keep hearing that millions of people are starving in certain parts of the world, the crops that could be used to feed them at a low cost are being fed to cattle instead. That same cattle is then slaughtered and either exported or sold at a price unattainable to those that are at greatest risk. This practice is not sustainable in the long run.