Most people say they are ready to make personal sacrifices to address climate change, according to a BBC poll of 22,000 people in 21 countries.
Four out of five people say they are prepared to change their lifestyle, even in the US and China, the world's two biggest emitters of carbon dioxide.
Three quarters would back energy taxes if the cash was used to find new sources of energy, or boost efficiency.
Chinese respondents were more positive than any others about energy taxes.
BBC environment reporter Matt McGrath says the poll suggests that in many countries people are more willing than their governments to contemplate serious changes to their lifestyles to combat global warming.
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