Abstract
On the verge of the first commitment period of the Kyoto Protocol, effective strategies and local measures for climate change mitigation and its implementation is required for local governments in Japan. In order to evaluate applicability and validity of territory principle of IPCC for GHGs emission inventory at local level, this study describes the urban metabolic structure of energy and carbon in a Japanese service city (Fukuoka) and industrial city (Kitakyushu) by using Input-Output analysis technique. Per capita direct CO2 emission in Kitakyushu City is much higher than in Fukuoka City. However, the per capita responsible CO2 emission which is defined as direct and indirect CO2 emission minus embodied CO2 emission in export goods shows opposite results. This implies that the application of the territorial principle of IPCC inventory to a city might not be relevant to guide better directions of urban climate change policies.