Climate Spectator, 2 August, 2013 reported on the leak from the Climate Change Authority Caps and Targets Review draft report:

The Climate Change Authority is expected to recommend the emissions reduction target be increased, arguing that the reduced cost of international carbon permits would mean the target could be raised with minimal impact on businesses, according to The Australian Financial Review.

In a report due to be released in early October, the federal government's climate change adviser is expected to recommend that the reduction target be raised to 15 per cent below 2000 levels, from the current five per cent, by 2020 and 40 per cent below by 2030, the AFR added.

The plan would see businesses required to purchase more overseas carbon permits to meet the target.

The combination of reduced international carbon permit prices and falling power demand have opened the door for the authority to recommend strengthened targets.  Read more at http://www.businessspectator.com.au/news/2013/8/2/policy-politics/climate-adviser-eyes-higher-targets