The latest analysis of observations from the WMO Global Atmosphere Watch Programme shows that the globally averaged mole fractions of CO2, CH4 and N2O reached new highs in 2013, with CO2 at 396.0±0.1 ppm, CH4 at 1824±2 ppb and N2O at 325.9±0.1 ppb. These values constitute, respectively, 142%, 253% and 121% of pre-industrial (before 1750) levels. The atmospheric increase of CO2 from 2012 to 2013 was 2.9 ppm, which is the largest year to year change from 1984 to 2013.The climate is an extremely complex and dynamic system, so reasons for this recent rapid rise in measured atmospheric greenhouse gases remain poorly understood. Hypotheses could include limits on the capacities of the oceans or forests to absorb additional carbon dioxide. Determining the causes of this greenhouse gas spike is devoutly to be wished.
Wednesday, September 10, 2014
On The Up And Up
According to the World Meteorological Organization ("WMO"), 2013 was a record year for atmospheric greenhouse gases. On September 9, 2014, the WMO GREENHOUSE GAS BULLETIN reported the following: