A study of the impact of a carbon tax has found “no conclusive evidence” that the tax increases air pollution, according to the findings of a study published today.

The study was carried out by researchers at the Australian National University and is published in the journal Environmental Science and Technology.

“There is a real risk that the carbon tax may be a very damaging policy,” said the study’s lead author, Professor John Foulkes, a senior research fellow at the University of NSW’s School of Environment and Sustainable Resource Economics.

Professor Foulke and his team were asked to test a range of policies to determine whether they affected air quality. “

This study suggests that there is not much evidence that these taxes have had an impact on air pollution.”

Professor Foulke and his team were asked to test a range of policies to determine whether they affected air quality.

They compared the effects of a range and types of carbon taxes, including a carbon levy and a carbon offset levy, and whether they increased carbon dioxide emissions or reduced them.

The researchers looked at the emissions reductions and the carbon offset reductions, but did not include the impact on the emissions.

“We did not look at the impact or impact on greenhouse gas emissions, which would have been important if we wanted to make a judgement on whether carbon taxes are good or bad,” Professor Foulske said.

“If we did, it would have made us very, very cautious about what we should be doing.”

The study found that “all the carbon taxes we looked at had the same effect on carbon dioxide.

This is very surprising and not surprising given that most people think that carbon taxes increase emissions.”

Carbon tax: ‘we need to act now’ The study looked at whether the carbon price increase would be a “positive” or a “negative” impact on CO2 emissions.

Professor Folkkes said the “positive impact” of a tax would be due to people being able to make payments, while the “negative effect” would be caused by people paying more for air pollution.

The carbon tax is expected to be introduced to Australia’s roads and other infrastructure in April.

It will also be implemented in New South Wales, Victoria, Western Australia and South Australia.

“The most recent analysis of the emissions effect of carbon prices by the Commonwealth’s Department of Finance, in April 2015, concluded that the effects on CO02 emissions of carbon pricing were negative,” Professor Fraykes said.

However, the authors of the study noted that there was some uncertainty in the research.

“Because we did not do any modelling or statistical analyses, we could not be sure whether this positive effect of the carbon pricing was real or not,” Professor Foakes said.

Professor Fookes said that while the researchers were unable to conclude whether carbon prices had a positive or negative effect, they did find that “there was no evidence that they increased emissions.”

He said that the study did not support the “hope and expectation” argument that the government should implement the carbon emissions tax, arguing that the research did not show that carbon prices increased CO2.

“It is not the case that the emissions reduction that we would have expected from carbon pricing would be greater than what we would expect from a carbon reduction policy that the CO2 taxes would impose,” Professor Fraser said.

Carbon taxes are the world’s biggest carbon tax, with a price of $40 per tonne, which was introduced in 2014.

“But in practice, most countries do not impose carbon taxes on a regular basis,” Professor Graeme Fraser said, “so it is very hard to determine the impact.”

However, if the government wanted to increase emissions, it could increase the amount of emissions from vehicles and trucks that would be emissions in and of themselves.”