Dr Frank Jotzo, deputy director of the ANU Climate Change Institute, and former advisor to the Garnaut Climate Change Review, said "ruling out a 25% reduction is a mistake, since Australia's overwhelming interest is strong global climate action. An international agreement with deep cuts has just become a little bit more unlikely, as a result of Australia not putting a compatible offer on the table" and "the Treasury modelling has shown that even deep cuts won't carry big economic costs for Australia, if the policies are sound."