Three Australian authors with the UN's Intergovernmental Panel on Climate Change - Bill Hare, David Karoly and Amanda Lynch - say Professor Ross Garnaut's advice would all but guarantee environmental and social disaster, Fairfax reported today.

Prof Garnaut's latest report released last week recommends Australia cut its emissions by 10 per cent by 2020.

The authors have described Prof Garnaut's recommendations as inconsistent, disappointing and wrong, and argued for a 25 to 40 per cent cut, saying Australia was likely to be the developed nation worst hit by climate change.

But Mr Rudd today brushed off the criticism of Prof Garnaut's independent report.

"There's always going to be argy bargy within the scientific community and the policy community and the business community over climate change and what should be done about it," Mr Rudd told reporters in Brisbane.

"... some people will say we've done too much, others will say we've not done enough."

He said his experience was that scientists, like all people, had different views and did not always agree.

Mr Rudd said his government was determined to implement a carbon reduction scheme that would be both tough and controversial and a far better response than the alternative government's proposals.

Dr Hare, based at Germany's Potsdam Institute for Climate Impact Research, said adopting Prof Garnaut's recommendation would trigger big sea level rises, devastate ecosystems and dry up water supplies in Asia.

"Ross Garnaut's report is effectively putting off the cost of climate change to another generation, who will have to deal with a three degree rise in temperature as well as sucking carbon dioxide out of the air," he said.