Sri Lanka Carbon Strategy Study document may constitute ...

The average rate of concentration in the past 2 decades was at the rate of 1.5 ppm (0.4%) per year but large annual fluctuations in the rate of increase of CO2 concentrations can be observed. For example, in the 1990’s, the annual rate of growth of CO2 in the atmosphere varied between 0.9 ppm (0.2%) – 2.8 ppm (0.8%) with the highest ... ................
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