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Melting permafrost: Scientists warn of dangers of trapped carbon

2013-02-23 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed

Spiegel: Research published Thursday in the journal Science says that even slightly warmer temperatures could start melting permafrost, which in turn threatens to trigger the release of huge amounts of greenhouse gases trapped in ice. The frosty dungeon hides a dark secret. At least a quarter of the Northern Hemisphere's landmass is frozen and, like a vault, it holds 1,700 gigatonnes of carbon. This unimaginably high quantity of carbon comes from countless generations of creatures that have lived and died...

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Nearing a Tipping Point on Melting Permafrost?

2013-02-21 22:00:00| Climate Ark Climate Change & Global Warming Newsfeed

Climate Central: Nearly a quarter of the Northern Hemisphere's land surface is covered in permanently frozen soil, or permafrost, which is filled with carbon-rich plant debris -- enough to double the amount of heat-trapping carbon in the atmosphere if the permafrost all melted and the organic matter decomposed. According to a paper published Thursday in Science, that melting could come sooner, and be more widespread, than experts previously believed. If global average temperature were to rise another 2.5°F (1.5°C),...

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Sunlight stimulates release of climate-warming gas from melting arctic permafrost

2013-02-11 23:00:00| Climate Ark Climate Change & Global Warming Newsfeed

ScienceDaily: Ancient carbon trapped in Arctic permafrost is extremely sensitive to sunlight and, if exposed to the surface when long-frozen soils melt and collapse, can release climate-warming carbon dioxide gas into the atmosphere much faster than previously thought. University of Michigan ecologist and aquatic biogeochemist George Kling and his colleagues studied places in Arctic Alaska where permafrost is melting and is causing the overlying land surface to collapse, forming erosional holes and landslides...

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This is What a Melting Glacier Sounds Like

2013-02-07 09:01:00| Climate Ark Climate Change & Global Warming Newsfeed

Climate Desk: If a glacier melts in the Arctic and theres no one around, does it make a sound? Jonathan Perl thinks it does. The City College of New York musicologist was asked by climatologist Marco Tedesco to translate data records on Greenlands melting ice into sound. The result is a series of sonifications, on display through next week at CCNYs POLARSEEDS exhibit, that combine quantitative data with music to create an audio snapshot of climate change. Steady, long-term changes that are invisible to the...

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Pillar Induction Delivers 75kW Melting System for Gold & Silver Refining

2013-02-01 06:00:00| Industrial Newsroom - All News for Today

Pillar Induction has commissioned a new 75kW medium frequency induction melting installation at a leading precious metal refiner in the Midwest United States. The new installation consists of one medium frequency 150 lb. steel frame furnace with a hydraulic tilt system. The system is powered by a 75 kW, 3kHz Pillar MK8 power supply. A closed pressurized water cooling system was provided to cool the power supply and three furnaces. The water cooling system included a single pump, pumping ...This story is related to the following:ServicesChemical Processing and Waste ManagementSearch for suppliers of: Silver Refining Services | Gold Refining Services | Precious Metal Refining

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