co2 makes you fat, page-15

Hi Dayz
That was why I posted the links. Homo sapiens weren't around when the CO2 was this high a level.

Its not "natural" for us at all.
There is a lot of interesting questions coming out of these findings.

My question is , Could CO2 level be a trigger for evolutionary change.?

And why does that change have to be for the better?

Couldn't we regress to Homo cepranensis and Homo antecessor because of the high CO2 levels.?
Do we have a genetic trigger?