Sussan Ley is being warned by moderate Liberals against dumping a net-zero commitment as internal rifts tear at the coalition's seams.

Party members will meet in the next fortnight to finalise their emissions policy after the Nationals ploughed ahead with ditching the target.

Speculation is mounting Ms Ley will follow suit as more of her conservative leadership team disavow the commitment and backbenchers call for policy certainty in a damaging public debate.

Before coalition MPs met on Tuesday, moderate Liberals had urged the opposition leader to retain support for net zero in some form.

"The Liberal Party is not National Party-lite," Liberal frontbencher Tim Wilson told Sky News.

"You need to stand up as a leader of the party, for the Liberal Party, and for its right to make its own

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