Sentences with «atmospheric carbon dioxide levels»
Nonetheless mature forests do play an important role in the global carbon cycle as stable carbon pools, and clearance of forests leads to an increase of atmospheric carbon dioxide levels. (sciencedaily.com)
The year as a whole gave miserable summer weather to many, and there has been no upward trend of temperatures since the highs of 1998, despite steadily rising atmospheric carbon dioxide levels. (climatescience.org.nz)
The likely disasters are most likely to be caused by the «environmentalists» and their allies, not by alleged increases in atmospheric carbon dioxide levels caused by human activities. (carlineconomics.com)