Korean Energy Economic Review ISSN:1599-7057(Print) 에너지경제연구

This study analyzed the long-term relationship between CO2 emissions and energy consumption in Japan using the ARDL model. The ARDL-bound test results show that there is a cointegration between Japan's CO2 emissions, income, energy consumption, renewable energy consumption, and nuclear energy consumption.  CO2 emissions in Japan were determined in the long term by total energy consumption and nuclear energy consumption. Nuclear energy consumption has been shown to help reduce CO2 emissions. However, new and renewable energy has no significant effect on reducing CO2 emissions, because the proportion of new and renewable energy is still insignificant, and it is because the new renewable energy is not produced efficiently. It can be expected that Japan would have some difficultly in fulfillment CO2 emission abatement unless Japan resume nuclear power generation.