Japan should promote "green" taxes, a new global environment policy organization and other innovative policies in the runup to Earth Summit 2002 to be held in Johannesburg next fall, a leading think tank said Wednesday.

The Tokyo-based Japan Forum on International Relations outlined proposals on 16 themes. They exhort the nation to take the lead in international "environmental diplomacy" and to lead by example by shifting to an environmentally sustainable economy.

At home, the research institute recommends: