『Abstract
　By using the latest China-Japan input-output data sets and the index decomposition analysis (IDA) approach, this article analyzes the driving forces of CO2 emissions embodied in trade between the two countries during 1990-2000. We found that the growth of trade volume had a large influence on the increase of CO2 emissions embodiments in bilateral trade. The dramatic decline in carbon intensity of the Chinese economy is a primary cause in offsetting CO2 emissions exported from China to Japan over 1995-2000. We argue that a better understanding of the factors affecting CO2 emissions embodied in international trade will assist in seeking more effective policies with wider participation in the post-Kyoto regime.

Keywords: CO2 embodiment; Japan-China trade; Index decomposition analysis

1. Introduction
2. Methodologies
　2.1. Environmental input-output analysis
　2.2. Index decomposition analysis (IDA)
3. Data sources
　3.1. Multiregional input-output tables
　3.2. CO2 emissions coefficient data
　　3.2.1. CO2 emissions coefficients of Japan
　　3.2.2. CO2 emissions coefficients of China
4. Results and discussions
　4.1. Macro-scale depictions
　　4.1.1. Changes in embodied CO2 emissions
　　4.1.2. Changes in bilateral trade volume
　　4.1.3. Comparison of embodied carbon intensities of exports between China and Japan
　4.2. Results of decomposition analysis
5. Uncertainties
6. Conclusions
Appendix
References