[snarks_when_bored]

I don't think there's any question that some of the oxygen produced by rain forests ultimately mixes into the atmosphere and spreads around the globe. Of course, you didn't say—nor did I—that "all" or "most" of the oxygen in the atmosphere is produced in rain forests.

Concision in non-scientific contexts is not a vice.

[Sofa King]

If you're going to make a meaningful point any time soon, then do so and stop wasting my time trying to be cute.