Clear link between climate change and bushfires: UN adviser warns Tony Abbott

A senior United Nations climate change official says there is ''absolutely'' a link between climate change and bushfires and has warned that the Coalition government will pay a high political and financial price for its decision scrap carbon pricing.

In an interview with CNN's Christine Amanpour on Monday, the head of the UN's climate change negotiations, Christiana Figueres, said there was a clear link between climate change and bushfires such as those raging in New South Wales.

She noted that the World Meteorological Organisation had not yet established a direct link between the NSW fires and climate change.

"But what is absolutely clear is the science is telling us that there are increasing heat waves in Asia, Europe, and Australia; that these will continue; that they will continue in their intensity and in their frequency," Ms Figueres said.

The highly unusual intervention by a senior UN official in a domestic climate policy debate comes three weekd before the next major round of UN-sponsored talks in Warsaw. The negotiations are aiming to reach a global climate treaty by 2015 that would take effect by 2020.

Ms Figueres described the NSW fires as an ''example of what we may be looking at unless we take actually vigorous action''.

The UN negotiator said the new Abbott government had chosen a more difficult and expensive path to emissions reduction than the previous Gillard government – noting that the Coalition had not stepped away from Australia's commitment to reduce its emissions by 5 per cent by 2020.

''The road that they are choosing to get to the same target than the previous government had could be much more expensive for them and for the population,'' Ms Figueres said.

This comes as Environment Minister Greg Hunt announced that the government could bypass the Senate and introduce its ''direct action'' carbon abatement policy through regulation.

The UN adviser said the Abbott government would not only pay a high political price but a ''very high financial price'' for stepping away from a price on carbon.

''What we need to do it put a price on carbon so that we don't have to continue to pay the price of carbon,'' she said.

Last week, the Australian Greens were criticised for drawing a link between the carbon tax and climate change at the height of the crisis, when homes had been lost and a man had lost his life.

Mr Hunt said on Friday that nobody should politicise a tragedy.

''There has been a terrible tragedy in NSW and no one anywhere should seek to politicise any human tragedy, let alone a bushfire of this scale,'' he said.

Labor leader Bill Shorten said it was not the right time to debate possible links between the bushfires and climate change.

When asked on Monday if climate change made disastrous events like the NSW fires more likely, NSW Premier Barry O'Farrell replied: ''Well, clearly, I think that's the science.''

He told the ABC's 7.30 that his job was to translate science into practical action.

''I understand that if you're planning new developments, if you're planning greenfield sites, you can ensure whether for flood damage or for fire damage, you build in a certain way,'' Mr O'Farrell said.

He said it was difficult to ''retro-fit'' already established communities like the Blue Mountains.