When I was born it was about 315ppm. Leaving school about 330ppm. When I turned 40 it was about 360 ppm. Yesterday it hit 400 ppm.
http://www.bbc.co.uk/news/science-environment-22486153
When I was born it was about 315ppm. Leaving school about 330ppm. When I turned 40 it was about 360 ppm. Yesterday it hit 400 ppm.
http://www.bbc.co.uk/news/science-environment-22486153
Bookmarks