CANBERRA (REUTERS) - Australia's Cabinet is expected to formally adopt a target for net-zero emissions by 2050 when it meets later on Monday (Oct 25) to review a deal reached between parties in Prime Minister Scott Morrison's coalition government, official sources told Reuters.

A junior partner in Australia's coalition government on Sunday said it would support a target of net-zero emissions by 2050, a policy that Mr Morrison will take to the United Nations COP26 climate summit next weekend.

The ruling coalition has been divided over how to tackle climate change, with the government maintaining that harder targets would damage the A$2 trillion (S$2 trillion) economy.

"The Australian people will know our plan," Morrison told lawmakers ahead of Monday's meeting.

He remarked that he would appoint a National Party lawmaker to cabinet, giving a fleeting glimpse of the deal terms.

National Party leader Barnaby Joyce has said the deal terms would not be disclosed publicly until the cabinet had a chance to review them.

The cabinet is set to meet late on Monday, two sources familiar with its schedule have told Reuters, adding that the government would then formally adopt the climate target, barring any unexpected delay.

The sources sought anonymity because they are not authorised to talk to the media.

The deal is not universally popular within the coalition, with media having reported Joyce as telling his party that he opposed the net zero target.

Morrison is under intense pressure at home and aboard, with a poll on Monday showing support for his government at its lowest in three years.

He faces an election by May 2022, and a poll published this month showed a record number of Australians were worried by climate change.