Debate Competition

I’m involved in a surprise debate that is fast approaching and am trying to anticipate as many arguments and counter arguments as possible for various topics. All we know about the debate is that it’s based around the topic of ‘Animals & The Environment’…
What are some debates you can think of under that category? Eg. Zoos do more harm than good
Thanks heaps!!
Ps. If you want to throw in any arguments that support/go against them that would be great

Can think of the amount of cows that are raised by farms because we eat them, how much methane those cows produce, and the impact of the methane on the environment.