聯合國小組：氣候變暖極可能是人類造成的

A United Nations panel said it is more certain than ever humans are a dominant cause of global warming and predicted temperatures would continue to rise this century.

The Intergovernmental Panel on Climate Change said Friday it is "extremely likely", its strongest words yet, that humans are largely responsible for global warming.

In its last report in 2007, IPCC said it was "very likely" global warming was man-made.

The co-chair of the group that wrote the new report said it has found that the atmosphere and ocean have warmed, snow and ice have diminished, the global mean sea level has risen and the concentration of greenhouse gases has increased.

The U.N. panel predicted that global average temperatures would rise by 0.3 to 4.8 degrees Celsius by 2100 with sea levels rising by 26 to 82 centimeters.聯合國政府間氣候變化小組說，該組織比以往任何時候都更加確信人類活動是造成全球氣候變暖的主要原因。該組織預測，全球氣溫將在本世紀繼續上升。

聯合國政府間氣候變化小組在星期五的報告中用迄今爲止最強烈的措辭指出，人類活動“極有可能”造成了氣候變暖。

在2007年的報告中，該小組曾表示氣候暖化“很有可能”是人爲因素造成的。

報告的主要撰寫人表示，報告發現全球大氣和海洋溫度仍在上升，地球冰雪消融，海平面持續升高，大氣層溫室氣體濃度在增加。

聯合國政府間氣候變化小組預計，2100年前，地球平均溫度將升高0點3到4點8攝氏度，海平面將升高26至82釐米。