The Greens hope to entice a Coalition senator to cross the floor and vote with them to pass legislation setting up the scheme.

Federal Opposition Leader Malcolm Turnbull said yesterday Liberal rebels had realised the damage done by this week's public discord over climate change and the party room would support the shadow cabinet's position on the issue.

Dissent over Mr Turnbull's leadership and his plans to negotiate amendments to Labor's emissions trading scheme was largely absent yesterday, after a horror two days of internal Liberal Party blood-letting.

Mr Turnbull, who flew to Perth to address the WA Liberal Party's state conference today and attend a Liberal fund-raiser last night, said he was confident the party room would focus on finding a united position at a meeting a week from tomorrow.

''I have no doubt the party room will endorse the approach of the shadow cabinet, which is to take a set of amendments to seek to negotiate with the Government,'' he said.

The Government has been hoping to pass the emissions trading scheme with Opposition support, but Coalition hostility to the scheme has been hardening.

There could be a Plan B. Should the Government do a deal with the Greens to green up the scheme, and win over Independent senator Nick Xenophon, Labor would be just one vote short of a majority.

For more, pick up a copy of today's Canberra Times