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Latest Permafrost Stories

Antarctic Permafrost Melting Faster Than Previously Thought
2013-07-24 17:51:21

Lee Rannals for redOrbit.com - Your Universe Online Scientists reported in the journal Scientific Reports that permafrost in a section of Antarctica is melting faster than expected. Data from Garwood Valley in the McMurdo Dry Valleys region of Antarctica has shown that melt rates accelerated consistently from 2001 to 2012, rising to about ten times the valley's historical average for the present geologic epoch. Scientists previously thought the region's ground ice to be in equilibrium,...

Arctic Permafrost Melts And Releases Greenhouse Gases
2013-06-11 10:18:54

Brett Smith for redOrbit.com - Your Universe Online Conditions within Arctic permafrost soils prevent dead plants and animals from decomposing, resulting in layer upon layer of organic carbon being sequestered just beneath the topsoil. However, rising Arctic temperatures are causing these soils to thaw at unprecedented rates, and NASA scientists are currently looking into just how much greenhouse gas is being released through soil decomposition. Using NASA´s C-23 Sherpa...

2013-06-10 10:19:55

Fund recommended to hedge against greatest threat: a breached oil sands tailing pond; Biodiversity in watershed covering roughly 20% of Canada compared to Africa's Serengeti; Alarm raised at melting of permafrost, ice that plays vital global climate role Canada's Mackenzie River basin -- among the world's most important major ecosystems -- is poorly studied, inadequately monitored, and at serious risk due to climate change and resource exploitation, a panel of international scientists warn...

Extreme Arctic Bacteria Could Thrive On Mars
2013-05-24 14:19:27

Lee Rannals for redOrbit.com - Your Universe Online A recent discovery made on Ellesmere Island in the Canadian High Arctic opens up the possibly that bacteria could grow on the surface of Mars. Scientists recently found that a bacterium was able to thrive at five degrees Fahrenheit, which is the coldest temperature ever reported for bacterial growth. The bacterium provides clues about preconditions for microbial life on both the Saturn moon Enceladus and Mars. The researchers...

Researchers Suprised By Arctic Resiliency In Carbon Storage
2013-05-17 08:15:10

April Flowers for redOrbit.com - Your Universe Online Certain assumptions were made by UC Santa Barbara doctoral student Seeta Sistla and her adviser, environmental studies professor Josh Schimel, when they traveled north recently to study the effects of long-term warming on the carbon storage of the Arctic. "We expected that because of the long-term warming, we would have lost carbon stored in the soil to the atmosphere," said Schimel. He explained that the gradual warming would...

Sea-Level Rise Will Overtake One Alaskan Town By 2017
2013-05-15 11:53:55

April Flowers for redOrbit.com - Your Universe Online If someone said “climate refuge” to you, what would come to mind? More than likely, the image of someone from a small tropical island in the Pacific, or of a low-lying delta like in Bangladesh — places where residents have been forced out of their homes by sea-level rise. The strict definition of a refugee in international law, according to a report by The Guardian, is rather narrow and typically includes only...

2013-04-19 14:16:25

A team of geoscientists from Southwest Research Institute (SwRI) using newly available remote-sensing technology has achieved unprecedented detail in quantifying subtle, long-period changes in the water levels of shallow lakes and ponds in hard-to-reach Arctic wetlands. Analysis comparing time-lapsed, high-resolution satellite imagery of the Ahnewetut Wetlands in Kobuk Valley National Park, Alaska, revealed an accelerated loss of surface water in shallow thaw lakes and ponds over a recent...

Siberia Could Experience Widespread Permafrost Thaw Due To Global Warming
2013-02-23 09:07:48

Lee Rannals for redOrbit.com — Your Universe Online More evidence is pointing to the nightmare scenario that global warming is taking a toll on our planet. Oxford University scientists say that a global temperature rise of 2.7 degrees Fahrenheit could thaw the ground over a large area of Siberia, threatening the release of carbon from soil. If the thawing of Siberia's permafrost occurs, it could see that over 1,000 gigatons of the greenhouse gases carbon dioxide and methane are...

Arctic Permafrost Melt Releasing Carbon Dioxide At Unprecedented Rate
2013-02-12 09:23:50

Lawrence LeBlond for redOrbit.com - Your Universe Online Editor's note (Feb 16): This story earlier reported that thermokarst failures were occurring do to permafrost melt. However, permafrost doesn't melt, it thaws. The changes have been made to this story to reflect that. Researchers studying Arctic thermokarst failures in Alaska were alarmed to find climate-warming carbon dioxide gas may be releasing into the atmosphere at an unprecedented rate. This release is being caused by...

2013-01-07 10:10:40

Berkeley Lab research could lead to a better understanding of the Arctic ecosystem´s impact on the planet's climate What does pulling a radar-equipped sled across the Arctic tundra have to do with improving our understanding of climate change? It´s part of a new way to explore the little-known world of permafrost soils, which store almost as much carbon as the rest of the world´s soils and about twice as much as is in the atmosphere. The new approach combines several...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.