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Don't forget that cattle agriculture can make rainforests into wastelands.

https://www.sciencedirect.com/science/article/pii/S095937802...

Indeed my cattle mostly eat weeds, and eat things my chickens can't really eat. I don't feed either of them mass-produced crops, which actually also have ecological consequences in terms of huge amounts of petrochemicals needed both to fuel tractors and combines and to keep fertilising, topsoil losses, the amount of herbicides and pesticides sprayed, and so on.

> If the market demands more chicken over beef, producers are perfectly capable of making a switch.

Depends on local laws. In Canada, you cannot simply switch to chicken. It is supply managed.