Japan should not introduce new environmental regulations for three years and instead rely on voluntary efforts by the private and business sectors to fight global warming, a government advisory panel said Thursday.

The Central Environment Council, an advisory panel to the environment minister, said in a report that the government should deal with global warming with existing measures from 2002 to 2004 and then consider further steps after reviewing their effects.

The report focuses on domestic efforts for Japan's ratification of the 1997 Kyoto Protocol on curbing global warming.