More information is the key for the federal government of Australia to reverse the voter dislike for the carbon tax, a study by the Climate Institute said.

Initially, only 28 per cent of Australian voters backed the carbon tax which started to be collected on July 1. Those against the measure were 52 per cent and those uncertain were 20 per cent.

However, after the carbon tax was explained further, particularly the proceeds of the tax which went to households, business support and renewable energy, the percentage of Aussies who favoured the tax went up to 47 per cent, while those against it went down to 29 percent but those uncertain grew to 24 per cent.

"To some extent there's a kneejerk dislike of the laws, but if you spend 30 seconds to explain it then support strengthens," AAP quoted Climate Institute Chief John Connor.

"All of this is saying the ground is there to be gained, and now is not the time to walk away from this issue," added Mr Connor who released on Tuesday the full report in Canberra.

About 66 per cent of the survey respondents believe it should be the federal government which must lead in pursuing climate change but 47 per cent said the lead should be taken by business.

Another 44 per cent think Opposition leader Tony Abbott would fulfill his promise to repeal the carbon tax if he would win in 2013, 30 per cent thought otherwise and 36 per cent were unsure.

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