Why is Greenland covered in ice?

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Computer models show that while (tectonic) uplift of the Rocky Mountains may have contributed to increased ice cover on Greenland this change was small in comparison with the ice sheet caused by a decrease in carbon dioxide. Credit: Dan Lunt Universi ...
Computer models show that while (tectonic) uplift of the Rocky Mountains may have contributed to increased ice cover on Greenland, this change was small in comparison with the ice sheet caused by a decrease in carbon dioxide. Credit: Dan Lunt, University of Bristol
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There have been many reports in the media about the effects of global warming on the Greenland ice-sheet, but there is still great uncertainty as to why there is an ice-sheet there at all.


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All News summaries for August 27, 2008

NASA Invites Students to Name New Mars Rover

12 hours ago | User rating: not rated yet
(PhysOrg.com) -- NASA is looking for the right stuff, or in this case, the right name for the next Mars rover. NASA, in cooperation with Walt Disney Studios Motion Pictures' movie WALL-E from Pixar Animation ...

Astronaut outside space station loses tool bag

12 hours ago | User rating: not rated yet
(AP) -- A spacewalking astronaut whose grease gun erupted in a backpack-sized tool bag accidentally let go of the tote outside the international space station Tuesday, and it floated off along with everything ...

Calif. utilities must use 33 percent renewable energy for power generation by 2020

Nov 18, 2008 | User rating: not rated yet
California utilities, already struggling to meet a law requiring more renewable energy, saw the bar raised even higher Monday.

Global warming predictions are overestimated, suggests study on black carbon

Nov 18, 2008 | User rating: not rated yet
(PhysOrg.com) -- A detailed analysis of black carbon -- the residue of burned organic matter -- in computer climate models suggests that those models may be overestimating global warming predictions.

Scientists discover new planet orbiting dangerously close to giant star

Nov 18, 2008 | User rating: not rated yet
A team of astronomers from Penn State and Nicolaus Copernicus University in Poland has discovered a new planet that is closely orbiting a red-giant star, HD 102272, which is much older than our own Sun. The ...
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