Greenhouse gas emissions hit new record

Concentrations of carbon dioxide, methane and nitrous oxide broke fresh records in 2012, according to the World Meteorological Organization (WMO). Unless significant gains in controlling emissions are made, more frequent megastorms, water shortages, diseases, and land loss to rising seas may result. “CO2 has a ratchet effect,” said Peter Wadhams, professor of ocean physics at the University of Cambridge. The atmospheric increase of CO2 from 2011 to 2012 was actually higher than the average growth rate over the past 10 years, WMO said.


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