Connect to share and comment

Global carbon dioxide 2012 11-20

Appears In:
Record global carbon dioxide levels reported in 2011
Greenhouse gases are 40 percent higher than those before Industrial Age
See More
Global carbon dioxide 2012 11-20

Global carbon dioxide levels hit a new record high in 2011, the World Meteorological Organization says in a new report.

Saul Loeb
AFP/Getty Images