The good(?) news here is that the ocean is a crazy good CO2 sink. If we were to stop all CO2 emissions, global CO2 levels would start to drop dramatically because the oceans would soak up the atmospheric CO2. This doesn’t work endlessly, but right now about half of the CO2 emissions end up in the oceans, and that system doesn’t just stop if we stop producing it.

That being said, it’ll definitely continue to wreak havoc with ocean acidification. But it’s important to know that it’s not necessary to scrub CO2 from the atmosphere to get rid of a huge chunk that has already been emitted.