UN chief warns on climate change
42456
UN Secretary General Ban Ki-moon says global warming poses at least as big a threat to the world as war.
983
A leading US scientist tells the BBC that the world has already entered a state of dangerous climate change.
650199
The Governmentâs chief scientist will today highlight the need for action in combating global warning amid reports the main greenhouse gas is rising sharply.
149420
Science & environment: In pictures:  A UN report has warned of the dangers posed by global warming.
119714
The head of the UN refugee agency warns of a major catastrophe in Darfur if security does not improve.
703798
UN findings name human activity as 'very likely' cause of 'unequivocal' climate change.
396896
By Steve Bloomfield  Climate change has become a major security issue that could lead to "a world going up in flames", the United Nations' top environment official has warned.
37447
The U.N. climate chief predicted Wednesday that the world will reach the goal of cutting greenhouse gases 50 percent by 2050 and said the U.S. economic slowdown should spur governments to take bolder action in confronting global warming.
360769
The U.S. delegation to a global conference on disasters wants to purge a U.N. action plan of its references to climate change as a potential cause of future natural calamities.
288404
The Bush administration has made a "significant" shift on global warming, but still falls short on the "much more aggressive" policies needed to head off its damaging impact, the U.N. climate chief said Saturday.
50241
The Government&#39;s chief scientist has warned the world must act fast to combat global warming or face the dire consequences. Professor Sir David King said climate change cannot be avoided and that &quot;action is affordable, inaction is not&quot;.
82519
Natural disasters are affecting more and more people, the UN says ahead of a  conference on reducing the risks.
214529
The U.N. climate panel agreed its starkest warning yet on Thursday that human activities are causing global warming that may bring more droughts, heatwaves and rising seas, delegates said.
334995
The U.N. climate panel agreed its strongest warning yet on Thursday that human activities are causing global warming that may bring more droughts, heatwaves and rising seas, delegates said.
581906
TORONTO (CP) - A United Nations report says Canada will have to change its strategy for battling forest fires because climate change is causing larger, more intense blazes.
760528
Millions of Africans are likely to be worst affected by global warming, a conference on climate change hears.
253587
The world must act against natural disasters as well as climate change , the United Nations says.