It is 100% possible. Our school network at uni (including dorms) had a very strict no illegal seeding policy. It was possible to tweak uTorrent settings not to upload but if you messed it up, you were without internet for a day and there was a 3 strike policy.
I mean, carbon capture works but if people are not willing to pay 5$ extra to prevent the CO2 from being emitted then they sure as hell are not going to pay 50$ to capture it. And capturing will almost always be more expensive than not producing it.