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Researchers taking advantage of retreating ice shelves in Antarctica have discovered evidence of life that's been sealed away for nearly 100,000 years. Lake Hodgson on the Antarctic Peninsula, once covered by over 400 meters of ice, is now obscured only by a thin layer three to four meters thick. Scientists carefully drilled through the ice and took samples (abstract) from the layers of mud at the bottom (as much as 93 meters below the lake's surface). "The top few centimetres of the core contained current and recent organisms which inhabit the lake but once the core reached 3.2 m deep the microbes found most likely date back nearly 100,000 years. ... Some of the life discovered was in the form of Fossil DNA showing that many different types of bacteria live there, including a range of extremophiles which are species adapted to the most extreme environments. These use a variety of chemical methods to sustain life both with and without oxygen. One DNA sequence was related to the most ancient organisms known on Earth and parts of the DNA in twenty three percent has not been previously described."

colonist writes "According to the BBC, The British Antarctic Survey (BAS) and the Royal Institute of British Architects (RIBA) have begun a major international competition to design a new scientific research station at Antarctica. The old station, Halley Research Station, was built in 1992 and its ice shelf will break off by 2010." According to the article: "The first four bases were built on the surface and gradually got covered with snow and ultimately got so deep they became crushed by the weight of ice and had to be replaced", though the "current base on stilts" fared better until the ice shelf problems.

colonist writes "According to the BBC, The British Antarctic Survey (BAS) and the Royal Institute of British Architects (RIBA) have begun a major international competition to design a new scientific research station at Antarctica. The old station, Halley Research Station, was built in 1992 and its ice shelf will break off by 2010." According to the article: "The first four bases were built on the surface and gradually got covered with snow and ultimately got so deep they became crushed by the weight of ice and had to be replaced", though the "current base on stilts" fared better until the ice shelf problems.

Cally writes in: "The BBC reports that the Larsen B Ice Shelf in Antarctica, a 200m thick ice floe covering 3,250 sq km, has disintegrated. This is terrible news. The widely respected British Antarctic Survey are quoted as saying "We knew what was left would collapse eventually, but the speed of it is staggering[...] [It is hard] to believe that 500 billion tonnes of ice sheet has disintegrated in less than a month." As a Greenpeace member who's been following the debate for over a decade, it's hard not to feel aggrieved at those with their own agenda who have pushed the theory that global climate change isn't happening. Risk = probability x consequence..." The big iceberg is a separate event.

Cally writes in: "The BBC reports that the Larsen B Ice Shelf in Antarctica, a 200m thick ice floe covering 3,250 sq km, has disintegrated. This is terrible news. The widely respected British Antarctic Survey are quoted as saying "We knew what was left would collapse eventually, but the speed of it is staggering[...] [It is hard] to believe that 500 billion tonnes of ice sheet has disintegrated in less than a month." As a Greenpeace member who's been following the debate for over a decade, it's hard not to feel aggrieved at those with their own agenda who have pushed the theory that global climate change isn't happening. Risk = probability x consequence..." The big iceberg is a separate event.