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This paper investigates the effects of economic growth, electricity consumption and urbanization on CO2 emissions in Cameroon applying the newly developed ARDL to time series data from 1971 to 2011. In addition, we used a Vector Error Correction Model (VECM) in order to examine the long and short runs causality between CO2 emissions and others variables. The results obtained suggest that CO2 emissions are positively related to economic growth, electricity consumption and urbanization. Besides, the results suggest that there exist two forms of long run unidirectional causality when CO2 emissions and electricity consumption are dependent variables. We also found that in the short run, there is bidirectional causality between CO2 emissions and electricity consumption. Although Cameroon is not a major contributor to global carbon emissions, it should participate in the global effort of mitigation.