TONY Abbott has signalled he will sack Climate Commissioner Tim Flannery if he is elected as prime minister in September.

The Opposition Leader, who has vowed to dismantle the Climate Change department and merge it with the Environment Department in government, said he did not see the point of paying Professor Flannery around $180,000 a year for his views which were already public knowledge.



He said if elected as prime minister on September 14 and given the opportunity to revoke the carbon tax a whole range of climate change bureaucracies would also be axed.



"I suspect we might find the particular position you refer to might go with them," Mr Abbott told 2GB’s Ray Hadley when asked about Professor Flannery.



"It does sound like an unnecessary position given the gentlemen in question gives us the benefit of his views without needing taxpayer funding."



Professor Flannery, who penned the popular climate change book The Weather Makers, was appointed as Climate Commissioner in February 2011.



The 2007 Australian of The Year gets a salary of $180,000 for the three-day-a-week role.



Establishing the independent climate commission was a 2010 election commitment by Labor. It was originally slated to cost $5.6 million over four years.



Mr Abbott's comments come as Climate Change Minister Greg Combet says a new report warning Australia will soon face more extreme weather should serve as a warning to those who think action on cutting greenhouse gases can wait.



The report from the Climate Commission says climate change is already increasing the intensity and frequency of extreme weather like heatwaves, fires, cyclones, heavy rainfall and drought.



The report entitled Critical Decade: Extreme Weather, released on Wednesday, says the global climate system is warmer and moister than 50 years ago, with the extra heat making extreme weather events more frequent and severe.



In response to the report, the Australasian Fire and Emergency Service Authorities Council warned that while they had experience combating extreme weather events, people cannot expect emergency crews to protect their communities from increasingly intense fires and floods.



Mr Combet said climate change was no longer a problem for future generations to solve, as the impacts were already being felt.



He said the scientific advice was that this was the critical decade to act, and effective policies now would determine the severity of climate change experience for years to come.



"Increasing greenhouse gas emissions is like loading the dice for more extreme weather events in the future," he said in a statement.



The past summer was Australia's hottest, capped by the longest and most extreme heatwave on record.



The southern part of the country - including key food-growing regions - is becoming more drought-prone while the northwest is getting wetter.



Chief climate commissioner Tim Flannery has warned that while one-off events do occur, record-breaking weather was becoming more common as the climate shifts.



The independent commission's report draws on the latest research and observations from bodies including the CSIRO, the Bureau of Meteorology and Australian and international universities.



Mr Combet said it was time for Opposition Leader Tony Abbott to "pull his head out of the sand" and listen to the advice of the experts.



It was time he was held accountable for his "reckless views" on climate change, and called on to explain how he'd propose tackling global warming.



"Australia needs responsible leadership and sound policies on climate change, not opportunistic scare campaigns and negative politicking," Mr Combet said, adding the coalition's Direct Action policy had been criticised by scientists, economists and business experts.



A survey released on Wednesday by the World Wildlife Foundation of nearly 1300 people nationwide showed 72 per cent believed humans were contributing to climate change.