[Suicide Junkie]

Actually, plants use oxygen too! They generate oxygen during the day when they are photosynthesizing (sp?), but their metabolism is like ours in being driven by oxygen and carbohydrates. How else would be be able to eat them and get anything useful?

I know how plants work, but my point is that they would thrive in carbon dioxide rich atmospheres. Isn't that basically the definition of a CO2 race for SE4?