- Nippon Keidanren has drawn up a voluntary environmental action plan with the common goal of "reducing CO2 emission from the industrial and energy conversion sectors to at least the FY1990 level by FY2010".

- Implementation of the plan has reduced CO2 emission and maintained energy consumption steady against the FY1990 level.

- Energy consumption in the commercial/residential sector surged after the oil crisis and is still on the growth trend in recent years.

- Japan's per-capita energy consumption in the commercial/residential sector is relatively low compared to other major countries, but the difference is narrowing down.