Mammoth could shed light on warming
526284
Frozen in much the state it died some 37,500 years ago, a Siberian mammoth undergoing tests in Japan could finally explain why the beasts were driven to extinction Â and shed light on climate change, scientists said Friday.
24323
A new hypothesis could explain how the climate of early Mars became warm enough to support oceans.
250516
ACAPULCO, Mexico _ There's a new extraterrestrial suspect in the mysterious, highly debated disappearance of the woolly mammoth some 12,900 years ago. A team of two dozen scientists say the culprit was likely a comet that exploded in the atmosphere above North America.
220186
global average projected by UN reports. Siberia and Alaska have already warmed by 2-3 C since the 1950s. outweighed by threats to indigenous peoples and the habitats of animals and plants.
768748
Braving some of the world's coldest temperatures and wickedest winds, researchers are drilling ice cores in Antarctica to answer questions about global climate change.
190359
Previously undiscovered lakes under Antarctica may help improve our understanding of the interaction between global warming and the melting icepack. Plus: New climate accord sought. By the Associated Press.
116224
SILVER SPRING, Maryland  - A new movie showing young polar bears and walruses struggling toward adulthood in a melting Arctic puts a pair of charismatic faces on the global warming threat.
574074
Global warming over the coming century   could mean a return of temperatures last seen in the age of the   dinosaur and lead to the extinction of up to half of all   species, a scientist said on Thursday.
660878
PARIS -- Children in Norway plead for snow. Polar researchers describe melting glaciers. Some experts say that within this century, the Arctic may no longer be ice-locked.
49266
Scientists have worries about the Arctic warming as they have determined that the ice in Greenland and the Arctic is melting too rapidly .
734845
Global warming could cut a swathe through the planet's species over the coming centuries, warns a study released Wednesday that shows a link between rising temperatures and mass extinctions reaching back half a billion years.
760525
OSLO, Norway  - Ideal for an Ice Age, white fur  used as camouflage by animals from polar bears to Arctic foxes  may be going out of fashion because of global warming.
277412
Global temperatures predicted for the coming centuries could trigger a mass extinction, warn scientists.
642787
Subtle effects of global warming, silk stockings for spiders, springtime on Uranus and more.
181879
A laboratory perched on a windswept ridge in the Arctic should reveal vital clues about our changing planet.
81761
Global warming is heating the Arctic at a rapid pace - with impacts that could range from the disappearance of polar bears&#39; summer habitat by the century&#39;s end to a damaging rise in sea levels worldwide.
213994
Scientists describe a baby mammoth found almost intact in the permafrost of north-western Siberia.