London: Former British Conservative Party leader William Hague has called on Scott Morrison to end Australia's climate wars and adopt a net-zero carbon emissions target ahead of the United Nations climate change conference to be held in Glasgow this November.

Lord Hague, also Britain's former Foreign Secretary, was highly critical of the Australian government's approach to climate policy and called on climate denialists within conservative ranks to acknowledge that the science was accepted and settled.

He said leaving the issue of climate change to left-wing politicians would result in responses that were socialist, rather than driven by technology or market forces. The coalition should also consider carbon pricing as a way of curbing emissions.

The Australian Labor Party last week adopted a net-zero target, without saying what mechanisms would be used to curb carbon emissions. This prompted a scathing attack from Morrison who said in Parliament this week: "I'm not going to put a tax on them to get emissions down".