[dchapp]

Suppose all of those mitigations in your second paragraph are true. If phytoplankton die off in meaningful amounts, where will we get our oxygen?

[frazbin]

We have thousands of years of oxygen banked in the atmosphere so it's not an issue on the same time scale as co2

[dchapp]

Thanks! Since this was not obvious to me (and maybe isn't to others) here's a summary that cleared things up for me: https://blogs.nicholas.duke.edu/citizenscientist/oxygen-in-t...