Less than half of those surveyed, or 47 per cent, said they were prepared to make personal lifestyle changes to reduce carbon emissions, down from 58 per cent last year.

Only 37 per cent said they were willing to spend "extra time" on the effort, an eight-point drop.

And only one in five respondents - or 20 per cent - said they'd spend extra money to reduce climate change. That's down from 28 per cent a year ago.

The 11 countries surveyed were Australia, Brazil, Canada, China, France, Germany, India, Malaysia, Mexico, the United Kingdom and the United States. There were 2,000 respondents surveyed in China, including 1,000 in Hong Kong.

The survey was conducted as part of a joint collaboration between the financial institution HSBC and environmental groups, such as the Earthwatch Institute.

Results of the poll suggested that 55 per cent of respondents in the 11 countries said their governments should be doing more by investing in renewable energy sources, such as wind, solar and wave power.

That's more than double the 27 per cent who wanted their governments to participate in Kyoto-style international agreements to reduce emissions.

"People believe governments are focusing too much attention on indirect actions that pass responsibility for climate change onto others, such as increasing taxes on fossil fuels, encouraging individual environmentally friendly activities and participating in international negotiations, such as the Kyoto Protocol," the report said.

"More needs to be done to inform consumers about measures such as green taxation or carbon trading to help them understand how tangible these can be."