News tagged with polar ice
Warming ocean layers will undermine polar ice sheets
Warming of the ocean's subsurface layers will melt underwater portions of the Greenland and Antarctic ice sheets faster than previously thought, according to new University of Arizona-led research. Such melting ...
Space & Earth / Earth Sciences
Jul 03, 2011 |
3.3 / 5 (14) |
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Strange Martian Spirals Explained
Almost 40 years ago, NASA's Mariner 9 spacecraft relayed to Earth the first video images of Mars' northern polar ice cap, revealing a strange pattern of spiral swirls that has puzzled scientists ever since. ...
Space & Earth / Space Exploration
Jun 16, 2010 |
4.4 / 5 (12) |
5
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Planetary scientists solve 40-year-old mysteries of Mars' northern ice cap
Scientists have reconstructed the formation of two curious features in the northern ice cap of Mars—a chasm larger than the Grand Canyon and a series of spiral troughs—solving a pair of mysteries dating back ...
Space & Earth / Earth Sciences
May 26, 2010 |
4.8 / 5 (18) |
1
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Radar Finds Ice Deposits at Moon's North Pole
(PhysOrg.com) -- Using data from a NASA radar that flew aboard India's Chandrayaan-1 spacecraft, scientists have detected ice deposits near the moon's north pole. NASA's Mini-SAR instrument, a lightweight, ...
Space & Earth / Space Exploration
Mar 02, 2010 |
4.3 / 5 (19) |
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Previously Unknown Volcanic Eruption Helped Trigger Cold Decade
(PhysOrg.com) -- A team of chemists from the U.S. and France has found compelling evidence of a previously undocumented large volcanic eruption that occurred exactly 200 years ago, in 1809.
Space & Earth / Earth Sciences
Oct 29, 2009 |
4.3 / 5 (27) |
9
Is cannibalism in polar bears on the rise?
(PhysOrg.com) -- A series of photographs of cannibalism in polar bears have been released, and the researchers who witnessed the act think the rate of cannibalism may be increasing. They observed three instances ...
Dec 09, 2011 |
4.7 / 5 (7) |
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Watching the birth of an iceberg
(PhysOrg.com) -- After discovering an emerging crack that cuts across the floating ice shelf of Pine Island Glacier in Antarctica, NASA's Operation IceBridge has flown a follow-up mission and made the first-ever ...
Space & Earth / Earth Sciences
Nov 02, 2011 |
4.8 / 5 (5) |
0
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Arctic ice cover hits historic low: scientists
The area covered by Arctic sea ice reached its lowest point this week since the start of satellite observations in 1972, German researchers announced on Saturday.
Space & Earth / Earth Sciences
Sep 10, 2011 |
4 / 5 (25) |
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Out of thin Martian air
A wet Mars is just a memory, but where did the water go?
Space & Earth / Space Exploration
Aug 23, 2011 |
5 / 5 (7) |
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Model shows polar ice caps can recover from warmer climate-induced melting
A growing body of recent research indicates that, in Earth's warming climate, there is no "tipping point," or threshold warm temperature, beyond which polar sea ice cannot recover if temperatures come back down. New University ...
Space & Earth / Earth Sciences
Aug 17, 2011 |
4.6 / 5 (7) |
0
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Tohoku tsunami created icebergs in Antarctica
A NASA scientist and her colleagues were able to observe for the first time the power of an earthquake and tsunami to break off large icebergs a hemisphere away.
Space & Earth / Earth Sciences
Aug 08, 2011 |
4.5 / 5 (6) |
1
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Arctic ice cap near 2007 record minimum: Russia
The polar ice cap in the Arctic has melted to near its 2007 record minimum level and in some areas is 50 percent smaller than average, Russia's environmental monitoring agency said Thursday.
Space & Earth / Earth Sciences
Aug 04, 2011 |
4.7 / 5 (13) |
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Long-distance swims may cause polar bear problems
Polar bears forced to swim longer distances because of diminished sea ice off Alaska's coast may be paying a price in lost cubs or precious calories, according to a study by the U.S. Geological Survey.
Jul 20, 2011 |
2.3 / 5 (3) |
1
Ecological impact on Canada's Arctic coastline linked to global climate change
Scientists from Queen's and Carleton universities head a national multidisciplinary research team that has uncovered startling new evidence of the destructive impact of global climate change on North America's ...
May 16, 2011 |
4.3 / 5 (7) |
16
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Study warns of mercury in Arctic
Global mercury emissions could grow by 25 percent by 2020 if no action is taken to control them, posing a threat to polar bears, whales and seals and the Arctic communities who hunt those animals for food, ...
May 05, 2011 |
3.3 / 5 (3) |
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