CO2 levels have gone through the roof

THE CONCENTRATION of carbon dioxide in the atmosphere has reportedly eclipsed 415 parts per million for the first time in human history. That bodes ill, comments China Daily writer Zhang Zhouxiang:

One has to go back 3 million years to find a similar concentration of carbon dioxide in the atmosphere, at that time average sea levels were about 3 meters higher than now.

In other words, the possibility of the sea level rising a few meters higher than now is no longer a distant threat.