Environmentalists are calling for a reset of the federal government's climate policy in response to a report it will no longer use Kyoto carryover credits to meet emissions reductions targets.
Prime Minister Scott Morrison plans to tell world leaders next week Australia will not use the controversial accounting method to satisfy its 2030 target under the Paris Agreement, Nine newspapers say.
Greenpeace reponded to the news on Saturday by calling for a fresh climate policy.
Spokeswoman Nelli Stevenson said the government had been stalling on climate action and "dodgy accounting" had led to Australia being shamed on the world stage.
The government had been criticised for the carryover plan, which involved using "surplus" units from the past 12 years and putting them towards the next decade of Paris targets.
"Australia needs a strong, federal climate policy, not a federal government kicking back on the heavy lifting being done by states, territories and businesses who are getting on with the job of moving to safe and reliable 100 per cent renewable energy," Ms Stevenson said in a statement.
It was critical that Australia develop a meaningful policy to protect against worsening bushfires, heatwaves and droughts, she said.
"It's time to walk the talk and ramp up ambition beyond Australia's weak Paris targets."
Opposition leader Anthony Albanese called the development "rather pathetic" and said the government did not have a good enough short term or long term plan to tackle climate change.
Mr Albanese suggested the decision to refrain from using the carryover credits should not be viewed as "a positive".
"It is a fact that the rest of the world rejected that as an accounting trick. That's not a plus for the government," Mr Albanese said in Brisbane on Saturday morning.
"What we need is a plan to reduce emissions, not a plan for accounting tricks."
Attorney-General Christian Porter said it had always been the government's position that "essentially we are trying everything we can and using every technology available to meet our Paris targets without having to rely on the fact that we overperform with respect to our Kyoto targets".
He said the Paris targets were a "floor, not a ceiling" and the government's ambition was to do as well as possible.
The change is set to be announced at a summit convened by British Prime Minister Boris Johnson on December 12.
Australian Associated Press