Federal Coalition MP Craig Kelly has called on senior ministers to clarify Australia's Paris climate commitments after the government confirmed the country had signed up to total emissions budget at odds with a "hockey stick" approach to reductions he had been advocating.

Mr Kelly, who chairs the backbench energy and environment committee, has been outspoken in his calls to delay action to reduce greenhouse gas emission cuts until the end of the 2030 period Australia has committed to in the Paris agreement.

Federal Liberal MP Craig Kelly says he wants a clarification about Australia's Paris climate commitments. Credit:Alex Ellinghausen

"It's essential the trajectory of the reduction in the emission intensity of the electricity sector is done in a hockey-stick shape, where the majority of the heavy lifting or major reductions are backloaded towards the end of the next decade,” Mr Kelly said in a post to Facebook.

However, Fairfax Media sought a clarification from the federal Environment Department and was told that the Turnbull government had signed up to a "cumulative emissions reduction task".