The levels of gases in the atmosphere that drive global warming increased to a record high in 2012. According to the World Meteorological Organization (WMO), atmospheric CO2 grew more rapidly last year than its average rise over the past decade. via Pocket http://www.bbc.co.uk/news/science-environment-24833148#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa