News tagged with arctic landscape
With climate changes, polar bear and brown bear lineages intertwine
Polar bears' unique characteristics allow them to survive in one of the most extreme environments on Earth, but that survival is now threatened as rising temperatures and melting ice reshape the Arctic landscape. Now it appears ...
Jul 07, 2011 |
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Arctic snow harbors deadly assassin
Heavy and prolonged snowfall can bring about unexpected conditions that encourage fungal growth, leading to the death of plants in the Arctic, according to experts.
Jun 19, 2011 |
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First comprehensive geological Arctic map published
Canada has unveiled the first comprehensive Arctic atlas, detailing geological features that point to where oil and gas, gold and diamond deposits are likely hidden beneath snow and ice.
Space & Earth / Earth Sciences
May 15, 2009 |
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Search results for arctic landscape
Global extinction: Gradual doom is just as bad as abrupt
A painstakingly detailed investigation shows that mass extinctions need not be sudden events. The deadliest mass extinction of all took a long time to kill 90 percent of Earth's marine life, and it killed ...
Space & Earth / Earth Sciences
Feb 03, 2012 |
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Ice sheets can expand in a geologic instant, Arctic study shows
(PhysOrg.com) -- A fast-moving glacier on the Greenland Ice Sheet expanded in a geologic instant several millennia ago, growing in response to cooling periods that lasted not much longer than a century, according ...
Space & Earth / Earth Sciences
Dec 14, 2011 |
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USAID, CU-Boulder partner to study water resources in Asia mountains
A University of Colorado Boulder team is partnering with the United States Agency for International Development to assess snow and glacier contributions to water resources originating in the high mountains ...
Space & Earth / Earth Sciences
Dec 06, 2011 |
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Abrupt permafrost thaw increases climate threat
As the Arctic warms, greenhouse gases will be released from thawing permafrost faster and at significantly higher levels than previous estimates, according to survey results from 41 international scientists ...
Space & Earth / Earth Sciences
Nov 30, 2011 |
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Could lemmings be involved in regulating our climate?
The mention of lemmings usually evokes images of small rodents throwing themselves off the top of cliffs in acts of mass suicide; however, their reputations might no longer be determined by hearsay as a new ...
Nov 18, 2011 |
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Humans and climate contributed to extinctions of large ice-age mammals, study finds
the woolly rhinoceros, woolly mammoth, wild horse, reindeer, bison, and musk ox -- is the subject of a study by an international group of scientists investigating how climate fluctuations and human activity ...
Nov 02, 2011 |
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Hoping for mining boom, Canada opens last frontier
Dropping beneath low-lying clouds, a float plane circles a rocky landscape on the edge of the Arctic Circle grooved by the last ice age eight millennia ago and since then bathed by hundreds of rivers and lakes.
Space & Earth / Earth Sciences
Sep 25, 2011 |
4.8 / 5 (5) |
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Polar climate change may lead to ecological change
(PhysOrg.com) -- Ice and frozen ground at the North and South Poles are affected by climate change induced warming, but the consequences of thawing at each pole differ due to the geography and geology, according to a Penn ...
Aug 11, 2011 |
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Largest recorded tundra fire yields scientific surprises
In 2007 the largest recorded tundra fire in the circumpolar arctic released approximately as much carbon into the atmosphere as the tundra has stored in the previous 50 years, say scientists in the July 28 ...
Jul 27, 2011 |
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Where have all the dodos gone?
Biology professor Beth Shapiro is one part laboratory scientist and one part Indiana Jones style adventurer, traveling to remote locations to find fossilized bones and eggshells of ancient animals and extract ...
Jun 16, 2011 |
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List of search results for arctic landscape
