Both houses of Parliament will resume Monday morning and the Senate will keep sitting through the night.

"The Senate will keep sitting until it has disposed of the issue some way or other and we, of course, want it passed and we would like it passed on Monday," Minister Assisting for Climate Change Greg Combet said yesterday.

The Government will not move to end or suspend the debate, instead preferring to let Senators work through the night.

If the Opposition tries to end the debate, then the Government will be able to accuse it of shutting down discussion on climate change.

The only way Parliament can end is if there is a vote on the legislation, if the legislation is referred to a committee for further investigation or if it is deferred until next year.

The Government will not support any further inquiries.

There have been 13 parliamentary inquiries and reports on the emissions trading scheme in the past two years.

Instead, the Government is still holding out hope its legislation will be passed with the support of the Coalition and is refusing to speculate on what will happen if it does not pass.

"We have endeavoured from the outset to get the emissions trading arrangements, our climate change legislation, the Carbon Pollution Reduction Scheme through because it is just a critical public policy issue," Mr Combet said.

Liberal Senator Gary Humphries said he feared the Government would keep the Senate sitting throughout Monday night and into Tuesday before calling a vote on the legislation as Coalition members went into the partyroom meeting.

"It's a very ugly and untidy way to try to resolve what is one of the major issues facing the Australian community at the present time," Senator Humphries said.

"We really can't afford to descend into that level of chaos on an issue as important as this."

Government sources said the suggestion was implausible.