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Tag: arctic
Arctic draws oil money with stability, shallow seas
2013-02-12 14:37:00| Climate Ark Climate Change & Global Warming Newsfeed
Reuters: It may not be this year, but Royal Dutch/Shell and other oil companies will be back to drill in northern Alaska's seas, drawn by political stability and shallow waters. Weary of Middle Eastern turbulence, alarmed by Argentina's nationalization of Spanish group Repsol's assets, and shocked by the Islamist siege of an Algerian gas plant, companies are looking to unexploited parts of the Arctic. Drilling in the cold, remote waters is technologically difficult and expensive but dwindling reserves...
Tags: money
oil
stability
draws
Arctic sunshine revs up greenhouse gases
2013-02-12 10:00:00| Climate Ark Climate Change & Global Warming Newsfeed
United Press International: Sunlight in the arctic is delivering a double climate blow, researchers say, by both melting ice and speeding up the release of greenhouse gases. Dead vegetation preserved in far northern permafrost under ice is estimated to contain twice as much carbon dioxide as is held by the atmosphere, and global warming could allow this plant matter to decompose, releasing both that CO2 and methane, they say. Rose Cory at the University of North Carolina at Chapel Hill and her colleagues, studying melting...
Tags: sunshine
arctic
gases
greenhouse
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...
Tags: release
gas
arctic
melting
Arctic soils produce significant amounts of CO2
2013-02-11 07:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Science Now: Each spring in the Arctic, the freshet-flooding triggered by melting snow-washes vast amounts of carbon-rich soil from the land into the water-both fresh water and the ocean. That's of particular interest to scientists studying global warming, because in those waters much of the carbon that's being released from melting permafrost is oxidized by bacteria into carbon dioxide, says Rose Cory, an environmental scientist at the University of North Carolina, Chapel Hill. Carbon from surface waters amounts...
Tags: significant
produce
amounts
arctic
The mystery of the disappearing Arctic ice
2013-02-07 10:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Financial Times: Much of the worlds growing fascination with the Arctic centres on climate change and how it is opening up this vast icy wilderness. But figuring out the rate at which the Arctic is likely to thaw has proved to be extremely difficult. Scientists have known for decades that the Arctic was warming twice as fast as the rest of the world, and that the area covered by sea ice that thaws each summer, then refreezes as winter sets in, has been steadily shrinking. But the rate of this melting has sometimes...
Tags: ice
mystery
arctic
disappearing
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