The China Meteorological Administration published its first Greenhouse Gas Bulletin January 14, showing that CO2 levels were at their highest in 2011 since the agency began collecting data in 1990. Average annual concentrations of CO2, CH4, and NOx for 2011 were higher than global averages, with readings of 38.2 ppm for CO2, 1,861 ppb for CH4, and 324.7 ppb for NOx.