There was a time that it did, and then we banned CFCs, and now it doesn't.
Shouting at people about CO2 is simply never ever ever going to fix the problem. It needs to be incentivised or it won't happen.
(https://www.google.com/search?client=safari&rls=en&q=corpora...)
So when Shell and BP are on Twitter sharing ways to change your behavior to save the environment, it's like the murderer encouraging you to wear a lucky charm to prevent being murdered, as they're standing over you with the knife.
And why are those corporations emitting Co2? For the fun of it? Because it generates profit for them? No, it's a means to an end for them, which is producing products that ultimately go to consumers. On the flip side, if you're a consumer and 80% of your co2 emissions are indirectly generated by corporations working on your behalf, you don't get absolved for that 80%.