Happy Christmas from Mauna Loa

The latest measurements for atmospheric carbon dioxide from Mauna Loa show in November 2014 a measurement of 397.13 parts per million compared with 395.11 ppm in November 2013. The measurements are taken at an altitude of 3,400 metres in the sub tropics, and concentrations of atmospheric carbon dioxide are likely to be higher in low level industrial conurbations, but the importance of the Mauna Loa measurements is that they demonstrate trends.

From my reading of these trends it is likely, in my view that the atmospheric concentration of carbon dioxide at Mauna Loa will during 2015 be higher than 400ppm more often than not, and by 2017 will consistently exceed 400ppm.

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