Strong climate change policy is a vote-changing matter for a majority of Australians, a new poll shows, establishing the issue as an important battleground one week into the election campaign.

According to the ReachTEL survey of 2400 people, conducted for a coalition of environmental groups, 64 per cent of respondents said they would be more likely to vote for a party seeking 100 per cent renewable energy in 20 years and 48 per cent said they would be more likely to support a party reducing Australia's net carbon emissions to zero by 2050.

56.4 per cent of people want the government to do more on climate change while 27.8 per cent think the current settings are right and 9.9 per cent want less action.