Decoupling Analysis of Four Selected Countries: China, Russia, Japan, and the United States during 2000-2007

We examine decoupling conditions of domestic extraction of materials, energy use, and sulfur dioxide (SO2) emissions from gross domestic product (GDP) for two BRIC (Brazil, Russia, India and China) countries (i.e., China and Russia) and two Organisation for Economic Co-operation and Development (OECD) countries (Japan and the United States) during 2000-2007, using a pair of decoupling indicators for resource use (D-r) and waste emissions (D-e) and the decoupling chart, which can distinguish between absolute decoupling, relative decoupling, and non-decoupling. We find that (1) during 2000-2007, decoupling between environmental indicators and GDP was higher in the two OECD countries as compared with the two BRIC countries. The key reason is that these countries were in different development stages with different economic growth rates. (2) Changes in environmental policies can significantly influence the degree of decoupling in a country. (3) China, Japan, and the United States were more successful in decoupling SO2 emissions from GDP than in decoupling material and energy use from GDP. The main reason is that, unlike resource use, waste emissions (e. g., SO2 emissions) can be reduced by effective end-of-pipe treatment. (4) The decoupling indicator is different from the changing rate of resource use and waste emissions. If two countries have different GDP growth rates, even though they may have similar values using the decoupling indicator, they may show different rates of change for resource use and waste emissions.