Tony Abbott's chief business adviser has accused the United Nations of using climate change to impose a "new world order" under its control.
Maurice Newman, a climate change sceptic and chairman of the prime minister's business advisory council, believes the UN is using global warming as a tool to create an "authoritarian world" with concentrated political authority.
"(The UN) is opposed to capitalism and freedom and has made environmental catastrophism a household topic to achieve its objective," he wrote in an opinion piece in The Australian on Friday.