Once in my shared apartment, while I was in university, a guest of a roommate was dumping a lot of rubbish in the bin, and I pointed out we had baskets for recycling. "Yeah, but it takes time to separate the parts. Do you think [CEO of a huge fossil fuel industry in my country] does that?"
I didn't know how to answer that.
The CEO went to jail a few years later.
Edit: nope, it sounded too good to be true. He didn't serve time. He is still a CEO of something else. FML.
I have the feeling that nutritional choices are one of the strongest levers we can pull as individuals to reduce our footprint. I'm vegetarian (with occasional fish) and my dog mostly eats vegetarian wet food (with a balanced nutritional value, lentils as protein). The dry food is still made with meat (we mix in a veggie one when we find a good offer). He is the most uncomplicated eater so I guess we could shift even more towards full vegan, but my understanding is that pet food producers (outside of extremely luxury brands) are working mostly with the byproducts of the meat industry for humans, and it will also naturally shift as that industry shrinks.