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Fewer people in the UK believe in global climate change compared with five years ago, a Cardiff University survey says.

Seventy one percent of people now believe the world's climate is changing compared with 91% in 2005.

The independent survey follows the 2009 UN climate talks and a controversy over leaked e-mails by scientists at the University of East Anglia.

Researchers questioned 1,800 people as part of the survey.

Professor Nick Pidgeon said: "The results do show a rise in those who hold doubts about the reality of climate change."

He added: "Although this may not be as significant as some had first feared.

The survey of 1,800 people in England, Wales and Scotland was conducted in the wake of the UN climate talks in Copenhagen last December, which delivered a non-binding accord on cutting emissions. The accord was judged by some to have been a failure.

People were also surveyed amid debate about a series of leaked e-mails from the University of East Anglia's Climatic Research Unit. Critics had suggested that the e-mail exchanges revealed an attempt by the researchers involved to manipulate data.

However an independent inquiry panel into the matter concluded there was no scientific malpractice at the University of East Anglia's Climatic Research Unit.

The survey also followed an apology from the international scientific body which produces reviews on global warming, the Intergovernmental Panel on Climate Change (IPCC).

It was forced to apologise for mistakes in its most recent report published in 2007.

The report contained a prediction that Himalayan glaciers were likely to disappear by 2035.

The IPCC later said the prediction was "poorly substantiated" and resulted from a lapse in standards.

Despite the controversies most people (71%) remain either fairly or very concerned about climate change, compared to 82% when asked in 2005, the survey shows.

More than half (57%) still believe that most scientists agree that humans are causing climate change, while 40% do consider that the seriousness of climate change is exaggerated.

The survey also found:

Professor Pidgeon said: "The country is faced with a range of critical decisions on both climate change and energy production and use which will affect us all.

"Whether new nuclear power, major wind farms, or encouraging people to conserve energy, we need to understand how public attitudes will impact on decisions."