Fewer Britons than ever support the proposition that global warming is caused by human-driven CO 2 emissions, according to the latest survey.

Some 48 per cent of Britons now agree with the suggestion that warming could be "mostly natural" and that the idea of it being human-caused has yet to be proven. By comparison only 43 per cent agree with the idea that warming is "mostly" caused by industrial and vehicular CO 2 emissions.

In Canada the ratio is 58:34 in favour of the mamade warming hypothesis, while in the USA it's a tie.

Only 43 per cent of Britons think we should get poorer in order to protect the environment. The numbers have actually moved very little since November 2009, but believers are now in the minority.

The studies were conducted by Angus Reid and surveyed four thousand people in the USA, Canada and the UK.

The UK is only one of three countries in the world to pass legislation mandating CO 2 reduction, and the issue dominated the media agenda between 2006 and the Copenhagen Summit in 2009. So the UK is unique amongst the three countries surveyed, in giving its population saturation exposure to the climate change issue, and early exposure to CO 2 mitigation policies.

It would seem that the more people hear the arguments and study the policies, the less they like them.

You can download the PDF, with results and methodology, here. ®