ANALYSIS OF GREENHOUSE GAS EMISSIONS MITIGATION IN THE JOHKASOU SECTOR AND CONSIDERASTION OF MITIGATION POLICY

Abstract

 For promotion of low carbonisation in the johkasou sector, this study disclosed the transition of the greenhouse gas (GHG) emissions associated with technological development over more than 20 years from 1990, then discussed the policy-making for further GHG emissions reduction based on the results. In this study, GHG emissions from johkasous of 5 to 10 P.E between 1990 and 2013 have been researched to analyse the GHG emissions throughout johkasou's lifecycle. As a result, in comparison with 1990, the emissions from factory-made johkasous in 2013 were reduced by 35% per johkasou, which indicates that development of energy-saving blower and compact johkasous has been an effective means of low carbonisation. Moreover, it suggests that Japan's goal to reduce GHG emissions by 26% by 2030 (compared to 2013) in the johkasou sector is achievable by promoting johkasous with the currently highest performance, however further policies need to be made in order to achieve the long-term goal (80% reduction by 2050).