In her press conference yesterday afternoon, Climate Change Minister Penny Wong twice refused to guarantee that her CPRS would reduce Australia's emissions.

The Greens will continue to urge the government to discuss the constructive interim proposal put on the table last week and since endorsed by Professor Garnaut.

"Minister Wong cannot guarantee that her CPRS will reduce Australia's emissions because she knows full well that, in its current form, it won't," Australian Greens Deputy Leader, Senator Christine Milne said.

"The Government's own modelling confirms that the CPRS will pay Australia's polluters to keep polluting while hiding that fact with unlimited, and potentially dodgy, carbon offsets from overseas.

"The Greens stand ready, willing and able to work with Mr Rudd and Minister Wong to make the emissions trading scheme workable, but we cannot and will not support a scheme which, as it stands, is nothing more than multi-billion dollar smoke and mirrors.

"Our proposal is designed as a building block for future climate action that's got real teeth. Mr Rudd's CPRS is impossible to strengthen after it's passed without billions more handouts to polluters.

"Our proposal gives half its revenue back to Australia's householders and is still in the black. Mr Rudd's CPRS pays polluters to keep polluting and ends up deep in debt.

"Our proposal will drive investment and job creation here in Australia. Mr Rudd's CPRS will simply flood Australia with carbon offsets from overseas. He would not even accept the Greens' sensible proposal to make sure that those offsets are gold standard accredited, let alone limit their number.

"With their disappointing Copenhagen submission last night, Kevin Rudd and Penny Wong confirmed again that they do not have what it takes to provide leadership on the climate crisis. They are part of the problem, not part of the solution.

"Their programs on renewable energy and energy efficiency are in a shambles and their Green Car Innovation Fund is paying for 4 cylinder petrol cars.

"Clearly, Australians will have to look elsewhere for leadership on the climate crisis."