CO_2排出による沖縄の環境分析

概要

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The aim of the research project was to estimate CO_2 emissions produced by 32 industrial sectors in Okinawa from 1975 to 2000, and to explain which factors contributed to the increase or decrease in CO_2 emissions. For this research, we utilized applied the environmental extended Input-Output tables. We also determined environmental efficiency by examining the relation between gross regional product (GRP) and the amount of CO_2 emissions and evaluated the level of sustainability by comparing the amount of CO_2 emissions and the carrying capacity of Okinawa's ecosystems. The results clearly illustrated that time series variation of CO_2 emissions had two trends: in the periods 1975-1985, the amount of CO_2 emission decreased while gross regional product (GRP) increased dramatically ; in the periods 1985-2000, the final demand was the main factor of increase in CO_2 emission. We also found that for the entire period, the amount of CO_2 emission exceeded by 9 to 15 times the carrying capacity of Okinawa's ecosystem. Thus, it can be said that in terms of CO_2 emission, Okinawa is far from being a sustainable society.
沖縄国際大学の論文