hah, all these papers were timed to come out now to try and drive the hysteria for the conference in Copenhagen, and train went off the track :-)
As Imhofe said to Boxer, “We won, you lost, get a life.”
At least most of them didn't know that ~ but one of them did ~ 'cause he released it.
Here's a thought. Researchers recently found that blue-green algae are actually 5% more efficient than previously thought. They constitute a serious carbon sink taking CO2 and turning it into more stable carbon compounds and releasing oxygen. They'd previously been credited with releasing half our atmospheres oxygen, but now their contribution has been re-estimated.
There's a lower bound for the CO2 content of the atmosphere when it comes to blue-green algae (aka cyanobacter) ~ something like 200 ppm or they just die off. I don't believe there's an upper bound, but as long as they get all the nutrients they need, and plenty of space to spread in the ocean surface, they should expand relative to any increase in the amount of CO2 and suck it in like the hungry little beggars they really are.
Given enough sunlight, enough cyanobacteria, enough infective viruses (which presently infect 10% of the cyanobacteria and thereby boost aggregate production of oxygen considerably), they should maintain a balance.
Currently the CO2 content of our atmosphere is being measured by satellite ~ haven't seen any reports on what it is, but I bet it's lower than what the AWG grant masters have been telling us. The cyanobacter would want it that way.