The inaugural meeting will take place in Sydney at ministerial level, Campbell said at the United Nations climate talks here. He did not give the date.

The initiative -- formally called the Asia-Pacific Partnership on Clean Development and Climate -- was launched in Bangkok in July, and it was left to a later meeting to flesh out details.

It gathers the United States, China, India, Japan, South Korea and Australia.

"This critical partnership will work practically and collaboratively to accelerate development and deployment of clean and low-emissions technologies and share best practices on clean development and climate," Campbell said.

At a press conference here, US Under Secretary of State for Democracy and Global Affairs Paula Dobriansky said Secretary of State Condoleezza Rice would attend the meeting, and the US delegation would include business representatives.

"There are a number of very specific projects" that would be discussed at the meeting, she said, itemising energy security, poverty reduction and sustainable development.

Green groups are suspicious of the initiative, seeing in it as a US attempt to subvert the Kyoto Protocol on greenhouse gases, the UN pact abandoned by Washington in 2001 as being too costly for its economy.

That suggestion is denied by the partnership members, who say the scheme seeks to encourage the introduction of cleaner energy sources among fast-growing developing countries.

On Wednesday, British Environment Secretary Margaret Beckett, whose country is current president of the European Union (EU), told journalists, "The Asia-Pacific partnership sounds like a worthwhile initiative."

David Garman, an under secretary at the US Department of Energy, said, "It's very important for nations such as India and China to get started on the technological pathway."

China is now the second biggest greenhouse-gas polluter after the United States thanks to the voracious rise in coal, gas and oil consumption to power its economic growth.

Fossil fuels are the backbone of energy sources today, but burning them releases invisible gases that trap the Sun's heat in the Earth's atmosphere rather than let it bounce back into space.

As a result, the planet's temperature has risen sharply in the past three decades, setting it on course for what scientists say is potentially ruinous damage to the climate system.

Australia and the United States signed the framework deal for the Kyoto Protocol in 1997.

In 2001, as negotiations for completing Kyoto's rulebook were still underway, the US said it would not ratify the outcome and Australia followed suit.

The main US objection is to Kyoto's approach for legal caps on industrialised signatories to reduce emissions as compared to a 1990 benchmark. This cap, according to the administration of President George W. Bush, is too costly for the US economy.

Facing withering criticism for walking away from a treaty that it was instrumental in crafting, the United States has been fighting back with partnerships that promote a voluntary, technology-driven approach to reducing pollution.