Pollution is the enemy not carbon.
Someone will probably mention plants. It's required for plants, yes, but we're not plants.
That seems to be only when the CO2 concentration is raised abruptly. After that the body compensates. For example, submarine crews operate perfectly fine in an atmosphere of 2 to 5% CO2 (roughly 100x what is normal), for weeks on end.
That's also the reason why people should spend more time outside.
Our generation never experienced real fresh air - we don’t know how it smells or feels.
Anyway, I don't think the martial wording is appropriate in most cases. For example I don't want to fight carbon dioxide. I rather want our technology to not disturb the global biological/chemical balance much more. So I support better adopted technology.
And fighting pollution, well, I actually have to restrain myself not to physically attack people who I witness dropping plastic garbage into nature. But the pollution which is already there, I can only clean up.
So fighting polluters, yes. But fighting pollution sounds like a oxymoron to me, because fighting in itself is mostly dirty and damaging by its definition. War just leaves a mess. So I don't think the martial language really helps the cause.
As kids, we were sick with all kinds of respiratory disease all the time and the air stank like burnt tires.
Burning coal is dirty, dirty, dirty.
Therefore I don't think its misguided to "see the carbon as the enemy".
By the way I live in Slovakia and I was baffled by our previous government stubbornly keeping the dirty hornonitrianske coal mines open through public funding. Even though they are loosing money and it would be cheaper (and much much cleaner) to just pay the miners to do nothing.