[M1573RMU74710N]

The fact that C02 levels have been higher is not necessarily in contradiction to the article, nor an important omission.

This issue as other's have pointed out is the CAUSE of the current levels and the implications thereof.

In the past the high levels of C02 were at least partially due to ice ages, which prevented the normal processes for the mitigation of C02, once the levels built up enough the greenhouse effect melted the ice and restored the levels.

Look around, there's no ice age.

So not only is there no discernible cause for the increase except out actions, we don't have a huge C02-eating army trapped in the ice waiting to be released.

Some natural mechanism will probably step in, but who knows what effects it will have.

We are monkeying with a system we know to have far reaching and potentially devastating effects.

[alanh]

You repeatedly type cee-zero-two. It's the letter O, as CO₂ stands for (mono-)carbon dioxide, a gaseous molecule with one carbon and two oxygen molecules. I'm sure you know that, but hey, if you didn't, there you go.