Japan's prime minister-elect Hatoyama said yesterday he will forge ahead with a tough 25 percent cut in emissions by 2020, despite growing opposition from industry which says the target will hurt the world's No 2 economy.

This is compared with the outgoing government's 2020 target, announced in June, equivalent to a cut of 8 percent below 1990 levels.

Chinese analysts expressed doubts about the feasibility of the target.