Citizens left disillusioned by the government's attempts to curb greenhouse gas emissions have come up with an alternative plan.

They say their calculations show that greater effort in certain areas would enable Japan to more than meet its goal of a 6 percent cut in greenhouse gas emissions, as stated in the Kyoto Protocol adopted at the Third Conference of Parties to the U.N. Framework Convention on Climate Change -- or COP3 -- in Kyoto in December 1997.

Alternative plans by nongovernmental organizations call for slashing greenhouse gases through domestic measures -- with an emphasis on cutting energy consumption rather than relying on international schemes.