Air bubbles show CO2 in 'scary' range well above previous 800,000 years
“It is from air bubbles that we know for sure that carbon dioxide has increased by about 35 percent in the last 200 years,” said Dr Eric Wolff of the British Antarctic Survey and the leader of the science team for the 10-nation European Project for Ice Coring in Antarctica.“Before the last 200 years, which man has been influencing, it was pretty steady,” he added.
The natural level of CO2 over most of the past 800,000 years has been 180-300 parts per million by volume (ppmv) of air. But today it is at 380 ppmv.
I suppose the people who have been attributing the high levels of CO2 to "natural cycles" will now start claiming these supposed natural cycles are greater than 800,000 years in length.
No comments:
Post a Comment