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.
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