Treasurer Wayne Swan is set to release today the Productivity Commission's report on international climate regimes at noon in Brisbane. Mr Swan will try to justify to opposing industry that seven of Australia's top-10 trading partners have adopted major policies to reduce pollution. The coal and gas industries have continue to oppose the carbon tax legislation further arguing the report should look at the measures taken by Australia's competitors.

The Australian Coal Association has released a report that presents the difficulties the carbon tax will have on coal producers and other industry sectors. The report claims that no major coal producing country taxes coal mines for greenhouse gas emissions, according to a report from The Australian newspaper.

The research by the Centre for International Economics showed that none of the major coal exporting countries has plans to impose a carbon tax. Australian Coal Association executive director Ralph Hillman said the report proves that the proposed tax would add to the costs of Australian coalmining while their competitors will have no such additional costs thus making their products cheaper. The Minerals Council of Australia also supported the research and added that the 13 key commodities such as gold, nickel, aluminum and iron ore would also face the same challenges.

Other industries have also called out their opposition to the carbon tax. The National Farmers Federation also showed research from the Australian Farm Institute that the carbon tax would add more than $6000 per year to the cost of sheep production. The additional cost could vary as high as $9000 in Western Australia and $8000 in NSW.

Federation President Jock Laurie says that the carbon tax will equal to about 16 percent reduction in net income for farmers.

The American Farm Institute has already released other data showing grain production costs rising by $39,000 under a carbon tax.

Climate Change Minister Greg Combet has acknowledged that impact of the proposed carbon tax on farmers. He has called on the Coalition to support the Carbon Farming Initiative Bill which will reward farmers who reduce their carbon emissions.