News tagged with permafrost

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Taking a Bite of Antarctic Ice

Taking a Bite of Antarctic Ice

Space & Earth / Space Exploration

created Nov 16, 2009 | popularity 3.8 / 5 (6) | comments 1

Scientists with NASA’s IceBite project are heading this week for University Valley, a hanging valley perched more than 1600 feet (more than 1 mile) above sea level in Antarctica’s McMurdo Dry Valleys. Their ...


Climate trouble may be bubbling up in far north (AP)

Climate trouble may be bubbling up in far north

Space & Earth / Environment

created Aug 30, 2009 | popularity 4.7 / 5 (77) | comments 27

(AP) -- Only a squawk from a sandhill crane broke the Arctic silence - and a low gurgle of bubbles, a watery whisper of trouble repeated in countless spots around the polar world.


Geological landforms indicate 'recent' warm weather on Mars

Geological landforms indicate 'recent' warm weather on Mars

Space & Earth / Space Exploration

created Jun 29, 2009 | popularity 4.5 / 5 (13) | comments 7

(PhysOrg.com) -- New research led by a UK scientist indicates that Mars had significantly warmer weather in its recent past than previously thought. The research, funded by the UK’s Science and Technology ...


Biologists: Greening Arctic not likely to offset permafrost carbon release

Biologists: Greening Arctic not likely to offset permafrost carbon release

Space & Earth / Environment

created May 27, 2009 | popularity 3.1 / 5 (7) | comments 0

As the frozen soil in the Arctic thaws, bacteria will break down organic matter, releasing long-stored carbon into the warming atmosphere.


Scientist: Microbe Community Deep Beneath Arctic Permafrost Needs Study

Space & Earth / Earth Sciences

created Dec 18, 2008 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- A community of microbes, living in a frigid layer of gas hydrates deep beneath the Arctic permafrost, has piqued the interest of scientists who say a better understanding of that environment is important ...


Duane Froese examines an ancient ice wedge.

Ancient Arctic ice could tell us about the future of permafrost

Space & Earth / Earth Sciences

created Sep 22, 2008 | popularity 4 / 5 (14) | comments 3

(PhysOrg.com) -- Researchers have discovered the oldest known ice in North America, and that permafrost may be a significant touchstone when looking at global warming.


Permafrost carbon content double the old estimates

Permafrost carbon content double the old estimates

Space & Earth / Environment

created Sep 12, 2008 | popularity 3.9 / 5 (27) | comments 21

New research indicates that the amount of frozen organic carbon locked away in the world’s permafrost regions – a major potential source of atmospheric carbon dioxide (CO2) and methane (CH4) – is double what ...


Bad sign for global warming: Thawing permafrost holds vast carbon pool

Space & Earth / Environment

created Sep 03, 2008 | popularity 4 / 5 (25) | comments 2

Permafrost blanketing the northern hemisphere contains more than twice the amount of carbon in the atmosphere, making it a potentially mammoth contributor to global climate change depending on how quickly it thaws.


Thawing permafrost likely to boost global warming

Biology /

created Sep 01, 2008 | popularity 3.7 / 5 (7) | comments 0

The thawing of permafrost in northern latitudes, which greatly increases microbial decomposition of carbon compounds in soil, will dominate other effects of warming in the region and could become a major force promoting the ...