NASA: Earth's Climate Approaching 'Dangerous' Point
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NASA and Columbia University Earth Institute research finds that human-made greenhouse gases have brought the Earthâs climate close to critical tipping points, with potentially dangerous consequences for the planet.
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Climate change may carry a higher risk of flooding than was previously thought, the journal Nature reports.
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European winters will disappear by 2080 and extreme weather will become more common unless global warming across the continent is slowed, warns a major new report.
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The U.N. climate panel issued its toughest warning yet on Friday that human activities are to blame for global warming and projected a damaging, accelerating rise in temperatures in the 21st century.
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The head of NASA drew criticism from scientists when he said he was not sure global warming was a problem and added that it would be "arrogant" to assume the world's climate should not change in the future.
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Climate change could have global security implications on a par with nuclear war unless urgent action is taken, a report said on Wednesday.
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A U.S. scientist says climate change is producing increasing drought conditions but the nation is doing little to prepare for potential catastrophe.
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Climate experts rank most fragile world regions and warn of collapse before end of century
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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 ...Comment
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Earth sits between two worlds that have been devastated by climate catastrophes.
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Science & environment: In pictures:  A UN report has warned of the dangers posed by global warming.
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The Bush administration is trying to stifle scientific evidence of the dangers of global warming in an effort to keep the public uninformed, a NASA scientist said Tuesday night.
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Science & environment: Government publishes plans to study climate change from space but fails to back astronauts
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NASA Administrator Michael Griffin says while global warming is changing Earth's climate, he's not convinced that is "a problem we must wrestle with."
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The amount of carbon dioxide in the Earth&#39;s atmosphere has increased faster than expected in the last two years, renewing concern that global warming may accelerate.
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A decade after the world pledged to prevent "dangerous" global warming, 194 nations meet next week to review whether rare heatwaves and a fast Arctic thaw may signal that the planet is nearing the brink.
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Politicians in the nation's capital have been reluctant to set limits on the carbon dioxide pollution that is expected to warm the planet by 4 to 7 degrees Fahrenheit during the next century, citing uncertainty about the severity of the threat. But that uncertainty may have shrunk somewhat with the release last week of two scientific reports suggesting that global warming is not just a hypothetical possibility, but a real phenomenon that has already started transforming especially sensitive parts of the globe.