Approaching 400 ppm

The atmospheric concentration of carbon dioxide is approaching 400 ppm (parts per million) for the first time in at least half a millions years.  Track CO2 concentration at a great new site, with nice graphics and understandable information here.

This entry was posted on Wednesday, April 24th, 2013 at 12:23 pm. It is filed under Uncategorized and tagged with climate change. You can follow any responses to this entry through the RSS 2.0 feed.