I don't have any numbers or sources, but I'll chime in as someone who limits beef intake solely because of environmental reasons. I don't cut it out completely,

I don't have any numbers or sources, but I'll chime in as someone who limits beef intake solely because of environmental reasons. I don't cut it out completely, I just stay mindful and only eat beef when it's meaningful. So trying something new and interesting, special occasions, or when I otherwise will really savor it. If I'm getting fast food or just eating to eat, I steer towards chicken, eggs, or vegetarian options.