tfw you're comparing antarctic carbon dioxide levels to highest observed levels on earth, with different measurement methods. Yep, completely perfectly reasonable data comparison.
Hurr man made global warming is a hoax
Matthew Fisher
Jacob Ross
>It was only under 300 ppm in the Arctic
The Arctic has higher atmospheric CO2 than most of the globe, so if anything the comparison is making past CO2 and current CO2 closer than they actually are. Not to mention that there are plenty of non-Arctic proxies for CO2 and they agree with the Arctic record.
Eli Taylor
I said antarctic not arctic.
Julian Bailey
Refer.
John Scott
Wouldn't you be dead of asphyxiation before that became a concern?