Almost half of Britons do not believe human behaviour is the main cause of global warming, a new poll showed Sunday, a day before world leaders begin crunch¹ climate talks in Copenhagen.

上周日公布的一项最新民意调查显示，近一半的英国人认为人类行为并非导致全球变暖的主要原因。该调查结果公布于哥本哈根气候峰会召开的前一天。

Smoke billows from a factory chimney. Almost half of Britons do not believe human behaviour is the main cause of global warming, a new poll showed Sunday, a day before world leaders begin crunch climate talks in Copenhagen.

The ICM survey for The Sunday Telegraph newspaper found 52 percent of respondents thought humans were largely responsible for modern day rises in temperatures, but 39 percent said climate change had not yet been proven to be man-made.

A further seven percent did not believe climate change was happening at all.

Meanwhile, 23 percent thought climate change was "the most serious problem faced by man", with 58 percent saying it was merely仅仅，只不过 "one of a number of serious problems", while 17 percent said it was "not a very serious problem".

The findings are likely to concern world leaders such as Prime Minister Gordon Brown who believe an international deal in Copenhagen on cutting greenhouse gas emissions² is the best way to combat climate change.

They follow a row over leaked泄露的 emails from a key climate research unit at the University of East Anglia, which sparked鼓舞，点燃 claims that scientists were trying to suppress data which did not support the view that climate change is happening.

Some US lawmakers and a top Saudi official have said the emails undermine the science of climate change.

However, Brown this weekend said people who denied man's impact on global warming were "behind-the-times, anti-science, flat-earth climate sceptics怀疑论者".

ICM questioned 1,001 adults by telephone on December 2-3.