Cross-party negotiations to rescue the government's cornerstone election commitment for nature law reform are set to spill into next month, as Labor struggles to convince the Greens to vote for a pared-back environmental protection agency (EPA).

The delay means the reforms may not be settled by the time Environment Minister Tanya Plibersek hosts the Global Nature Positive Summit — dubbed the United Nations' COP for the environment — in Sydney between October 8 and 10.

Labor and the Greens are still hashing out whether to include a "climate trigger" in the EPA legislation, part of the biggest overhaul of habitat and species protection laws in almost a quarter century.

Prime Minister Anthony Albanese, who is scheduled to appear at a housing announcement with Ms Plibersek in her electorate of Sydney on Tuesday morning, has emphatically ruled out Greens calls for reformed environmental laws to include the so-called "climate trigger" that would see proposed resources projects barred if they emitted too much atmospheric pollution.

"I don't support adding a trigger to that legislation," Mr Albanese said on Monday.

Climate issues, he added, were best dealt with through the government's safeguard mechanism, which began this year and forces big resources, industrial and manufacturing emitters to slash climate-warming emissions.

"We've dealt with that," he said.

"We have a target of 43 per cent and we have a vehicle for emissions of large emitters as well as part of that program 

"The Greens and the Coalition, increasingly, are combining to vote against good legislation and — whether it is housing legislation, environmental legislation — they need to get out of the way and stop coming up with excuses and start voting for solutions."

Mr Albanese, however, appeared to leave the door open to a compromise that would see regulators required to give "consideration" to the climate effects of new mines, gas projects and agricultural developments.

Labor scheduled its nature positive bill for debate in the Senate this week.

But a government source told the ABC that it was prioritising its Future Made in Australia reforms and the Built to Rent housing legislation.

That means the bill will not reach a final vote by Thursday and it delays a resolution until at least the second week of October or later.

"The prime minister has a decision to make," said Greens environment spokesperson Sarah Hanson-Young, who accused Mr Albanese of trying to "bulldoze" the Senate.

"You can work with Peter Dutton, destroy the forest, destroy the climate and put our wildlife to extinction. Or work with the Greens to protect nature and have a genuine positive outcome for our environment."

Business Council of Australia chief executive Bran Black said the prime minister was "right to rule out a climate trigger and climate considerations in the Nature Positive legislation".

"The Greens' approach to include a climate trigger or vague climate considerations would only create more uncertainty and slow down an already cumbersome EPBC system," he said.

He also urged the Coalition to support the government's legislation.

"Any contentious legislation linked to land management like this needs to have bipartisan support from the major parties so there is longevity and meaningful reform."