A Study on Sustainable Development for the 21st Century began in September 1997. It will take about 30 months, and will produce a sustainable development system to integrate environmental, economic and social policies.

• "二十一世纪持续发展顾问研究"已于一九九七年九月展开，研究为期约30个月，将制订一套持续的发展制度，以便结合环境、经济及社会三方面的政策。