Greenhouse gases in the atmosphere hit a new record high in 2011, the World Meteorological Organization has said.
In its annual Greenhouse Gas Bulletin released on Tuesday, the organisation said that carbon dioxide levels reached 391 parts per million in 2011.
The report estimates that carbon dioxide accounts for 85% of the "radiative forcing" that leads to global temperature rises.
See full Article: http://www.bbc.co.uk/news/science-environment-20410942
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