Scientists debate climate dangers
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Two hundred scientists from around the world will try to agree on the definitions of temperature danger levels.
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A rise of 1 degree Celsius could be enough to trigger 'dangerous' warming, scientists warn.
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Debate raged on Friday after NASA chief Michael Griffin said he was unsure global warming was a &quot;problem we must wrestle with,&quot; drawing the ire of his own agency&#39;s top climate change expert.
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The debate is over: Global warming is here and humans are "very likely" the blame, an international group of scientists meeting in Paris, France, announced Friday.
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Scientists disagree on whether the region's high subsidence rates are natural or due to human intervention.
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Scientists have worries about the Arctic warming as they have determined that the ice in Greenland and the Arctic is melting too rapidly .
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Climate scientists tell a Stockholm conference that greater efforts should be made to pull CO2 from the atmosphere.
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The world's governments must dramatically cut emissions of heat-trapping gases or learn to live with more droughts, heat waves, powerful rainstorms, and rising sea levels that will affect millions, leading climate scientists said after the release of a landmark global warming report yesterday.
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The earliest civilizations were not a   product of favorable conditions but rather a last resort in the   face of dramatic shifts in the weather, a climate scientist   said on Thursday.
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The former US Vice President Al Gore tells scientists they need to speak out more on the issue of climate change.
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Global warming is so severe that it will "continue for centuries," leading to a far different planet in 100 years, warned a grim landmark report from the world's leading climate scientists and government officials. Yet, many of the experts are hopeful that nations will now take action to avoid the worst scenarios.
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A leading climatologist explains why he and other experts on global warming have decided to move beyond doing science to pushing for action to cut greenhouse gases.
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EXETER, England  - Scientists will step into a  feud between Washington and its allies over global warming at a  British-sponsored meeting this week.
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By Bart Jansen Washington D.C. correspondent  Congressional debate on climate change is heating up like the proverbial frog in boiling water. But whether the agitation will lead to action or just allow lawmakers to blow off steam is an open question.
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Climate experts and politicians  will discuss policies they believe may be needed beyond the Kyoto Protocol.
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Climate scientists tell a conference that greater efforts should be made to pull CO2 from the atmosphere.
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Scientists will step into a feud between Washington and its allies over global warming at a British-sponsored meeting this week.