The Morrison government is refusing to outline the details of any deal with the Nationals or put a figure on the cost of the plan underlying the new commitment to make Australia carbon neutral by 2050.
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Labor has called it, a "non-policy which has no new initiatives", while Nationals Minister Bridget McKenzie stunned Senate estimates by admitting she had not read the plan that had caused so much drama within Coalition over the past fortnight.
Prime Minister Scott Morrison on Tuesday announced "The Australian Way" plan to reach net zero by 2050, a position he will shortly take to the UN climate change summit in Glasgow.
After listing major measures including more than $20 billion invested in "low-emissions technologies", Mr Morrison sidestepped questions on climate costings and modelling saying they would come eventually and all policies would be announced before the next election due early next year.
After weeks of wrangling with the junior coalition partner the Nationals - and a go-ahead on Sunday which came with significant reservations, federal cabinet approved the "whole-of-economy" plan late on Monday and it was put as a formality to the joint government party room on Tuesday.
"This plan is 100 per cent supported by our government. 100 per cent supported by our government," Mr Morrison said.
"In this debate, there are those who will say we will be ruined if we don't and we will be ruined if we do."
"What's important for Australia is we set that middle course and that's what my government's doing. It is a Coalition government and the plan has the full support of our Coalition partners."
Under the known elements of the deal with the Nationals, Resources Minister Keith Pitt was elevated back into cabinet and the Productivity Commission will be conducting a review every five years to consider what impact the 2050 target is having on regional communities.
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As foreshadowed - and despite international pressure - there was no movement on Australia's 2030 carbon emissions target, coal and gas are very much still in the mix, there's a heavy reliance on unproven technologies such as soil carbon sequestration and carbon capture and storage (CCS) and there are assumptions future breakthroughs with low emissions technologies.
But there is not much information about any Nationals demands that were met or not, while Nationals minister Bridget McKenzie admitted in Senate estimates late on Tuesday that she has not read the plan, but had read a media release about it from the National Farmers Federation.
Opposition Leader Anthony Albanese criticised the plan as a "non-policy which has no new initiatives."
"This government today, again, have not released any modelling," he said.
"They have not released any new initiatives, and in their own words, this plan is based on our existing policies, so they themselves have stood up today, and said nothing to see here."
The Prime Minister said modelling underpinning the plan would be released in "due course."
"Today is about the plan. We will be releasing modelling at another time," he said. When asked again later, he said it would come out, "eventually."
Mr Morrison was also unwilling to share what the Nationals may or may not have received for supporting the plan.
In Senate estimates on Tuesday, Labor senator Katy Gallagher repeatedly asked Finance Minister Simon Birmingham about the plan which was presented in a glossy, colour brochure.
"What about the deal with the Nats? Where do we find that?" she asked. "Nice brochure. When was this printed? [The deal] was not signed off until last night. Was it [printed] overnight was it?"
The minister referred printing to the industry department and could only talk generally about regional and rural matters.
"Senator, as I said before there are many things that, as a government, we pursue in a continuous way which includes support for regional Australia. That is what we continue to do and will continue to do," Senator Birmingham said.
Asked if a reported multimillion-dollar Regional Future Fund was coming under the Nationals deal or has been agreed to, the Minister could neither confirm nor deny.
"If there were any such arrangements, they would be costed through the normal budget processes and announced by government," he said.
The government climate plan announced on Tuesday self-describes as being built on existing policies and states it won't put "industries, regions or jobs at risk."
The plan also includes using "ultra low-cost" solar and "clean hydrogen" power, listed as both blue and green hydrogen from entirely renewable sources, to lower fuel emissions and drive down costs.
There is no mandate or legislation binding the net zero by 2050 commitment, which has been urged by Labor.
It focuses on incentives, not penalties. There'll be government demand driving a lower emissions future and private demand will be voluntary.
"You won't find any taxes in it, you won't find anything in there telling people what they have to do and what they mandated," Mr Morrison told Parliament.
"You won't find anyone banning anything, anyone trying to shut down any mines or tell farmers what to do on their land, you won't find any additional regulation in our policy, that's why Labor does not like it."
He put it back to Labor to show its hand and reveal its climate policy, something it is promising to do after the Glasgow conference.
"So at the election there will be a clear choice on who do people trust with the right economic plan to see us through this?" he said.
"[This plan] demonstrates just how hard we have worked and wrestled with the difficult issues that Australians wrestle with too. Cutting emissions, protecting jobs and livelihoods. You have got to balance that and that's what we've done."
The latest projections show Australia is on track to cut emissions by 30 to 35 per cent by 2030. However, Australia's formal target of a 26 to 28 per cent reduction would remain unchanged.