The survey also reveals that most Britons believe "green" taxes on 4x4s, plastic bags and other consumer goods have been imposed to raise cash rather than change our behaviour, while two-thirds of Britons think the entire green agenda has been hijacked as a ploy to increase taxes.

The findings make depressing reading for green campaigners, who have spent recent months urging the Government to take far more radical action to reduce Britain's carbon footprint. The UK is committed to reducing carbon emissions by 60 per cent by 2050, a target that most experts believe will be difficult to reach. The results of the poll by Opinium, a leading research company, indicate that maintaining popular support for green policies may be a difficult act to pull off, and attempts in the future to curb car use and publicly fund investment in renewable resources will prove deeply unpopular.

The implications of the poll could also blow a hole in the calculations of the Chancellor, Alistair Darling, who was forced to delay a scheduled 2p-a-litre rise in fuel duty until the autumn in his spring Budget, while his plans to impose a showroom tax and higher vehicle excise duty on gas-guzzling cars will not take effect for a year. He is now under pressure to shelve the increase in fuel duty because of the steep rise in the price of oil.

The public's climate-change scepticism extends to the recent floods which inundated much of the West Country, and reported signs of changes in the cycle of the seasons. Just over a third of respondents (34 per cent) believe that extreme weather is becoming more common but has nothing to do with global warming. One in 10 said that they believed that climate change is totally natural.

The over-55s are most cynical about the effects of global warming with 43 per cent believing that extreme weather and global warming are unconnected.

Three in 10 (29 per cent) of all respondents would oppose any more legislation in support of green policies, while close to a third of citizens (31 per cent) believe that green taxes will have no discernible effect on the environment since people will still take long-haul flights regularly and drive carbon-heavy vehicles.

Mike Childs, the head of campaigns for Friends of the Earth, blamed the Government for generating a cynical response to "green taxes". "People do get cynical unless they see benefits," he said. "The Government is playing a dangerous game. They are using climate change to identify potential new taxes and revenues but the public aren't seeing anything in return. The public aren't being helped to go green. The Government could put a windfall tax on the big oil companies and use that money to insulate homes or introduce a feed-in tariff to pay people to produce renewable energy."

Mark Hodson, of Opinium Research, said: "Britain appears to be feeling increasingly negative about being more carbon neutral. We are questioning the truth behind being greener and many feel that Government is creating a green fear for monetary gain."

The findings were released as the Prince of Wales yesterday called on Britain's business leaders to take "essential action" to make their firms more sustainable. Speaking in central London to some of the country's leading chief executives, Prince Charles said: "What more can I do but urge you, this country's business leaders, to take the essential action now to make your businesses more sustainable. I'm exhausted with repeating that there really is no time to lose."

Also attending the May Day Business Summit, the Prime Minister promised the Government will set out a "credible" long-term policy framework to help industry develop innovative low-carbon, resource-efficient products and services.

He outlined the recommendations of a report, Building a Low Carbon Economy, for creating a "green" economy, including "seeking to encourage changes in consumer behaviour".

Gordon Brown said: "We know that we will only succeed if individuals and communities, as well as Government and business, are part of the solution."

Hilary Benn, the Environment Secretary, said: "The Government is committed to building a low-carbon economy, here and around the world. That means a complete change in the way we live and an economic transformation that will put Britain at the forefront of a technological revolution in the way we use and source our energy."