Decoupling analysis of CO2 emissions from transport sector in Cameroon

Abstract

The transport sector represents one of Cameroon's economic sectors with high energy consumption and CO2 emissions. To this end, it is clear that practical ways to save energy and reduce CO2 emissions from this sector are needed to enable Cameroon to achieve its greenhouse gas mitigation targets. The Tapio and LMDI methods were applied in this paper, based on an extended Kaya identity, to explore the decoupling relationship among energy-related CO2 emissions and growth from Cameroon’s transport sector, over the period 1990–2016. The decoupling indicators were broken down into five factors while considering the four fuels consumed in Cameroon's transport sector. Empirical results showed that only four states of decoupling appeared during the study’s period including weak decoupling, strong decoupling, weak negative decoupling, and strong negative decoupling. Meanwhile, scale effects, energy structure effect, and energy intensity effect prevented decoupling, whereas the economic structure effect played an important role in promoting decoupling. Based on the findings of this study, some policies aimed at reducing carbon emissions from Cameroon's transport sector were proposed in this paper.