There are surely others, but the ones coming to my mind right now:
- Agriculture: lots of CO2 are produced on-site under greenhouses by burning gas, because it speeds up the growing of crops.
- Sparkling drinks industry.
- Agriculture: lots of CO2 are produced on-site under greenhouses by burning gas, because it speeds up the growing of crops.
- Sparkling drinks industry.
But I agree that "avoiding to output more CO2" is not a replacement for "removing CO2", and this is very important indeed. It's just an additional war front, not a replacement.