Re: Wrong way round
dear Electorn Shepherd,
I think you will find that living things with an oxygen metabolism shed CO2 as part of the process of living. This includes plants and other organisms using light capture as their primary method for energy fixation in carbohydrates. It's simply that for plants the equilibrium is shifted to a net O2 production when sufficiently illuminated.
In fact, you will find that in the entire life cycle of a plant, actual CO2 capture is minimal, as upon death the plant will get recycled into its component parts by microorganisms, especially in the so-called Rainforests, which tend to have a more or less zero-sum profile when it comes to CO2 capture.
If you're looking for carbon capture through plants you're looking at peat bogs, sub-arctic prairy environments, and other places where microbial decomposition does not have time to fully take place before the next layer arrives. But that's less Glamorous than Rain Forests, isn't it?