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Politics : Actual left/right wing discussion

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To: TimF who wrote (5184)	11/27/2006 4:21:28 PM
From: one_less	Read Replies (1) of 10087

Global Warming Sinks Greenhouse gases could go undersea. By Anne Casselman DISCOVER Vol. 27 No. 12 \| December 2006 \| Environment The discovery of a vast lake of liquid carbon dioxide beneath the ocean floor off Taiwan has startled earth scientists and raised hopes for a new strategy against carbon dioxide–related global warming. That such a lake can even exist lends empirical support to a seemingly blue-sky proposal: Inject excess atmospheric CO2 deep into the ocean, where the high pressure would trap the gas in a liquid form. Fumio Inagaki from the Japan Agency for Marine-Earth Science and Technology, who made the discovery, says the lake probably formed when carbon dioxide seeped out through the ocean floor from a deep-sea volcano and pooled under a blanket of solid, icelike CO2 hydrate and deep-sea sediment. Researchers who have floated the idea of sequestering carbon-dioxide at the ocean bottom have worried that the submerged gas—which is damaging to cell membranes (as its use as a solvent in "green" dry cleaning attests)—could harm deep-sea organisms. But core samples from the newfound lake reveal a rich microbial life around its periphery. Moreover, finding a self-contained lake of carbon dioxide at a relatively shallow 4,600 feet below sea level "is highly suggestive that if you went down a further 4,900 feet you could actually inject liquid CO2 and it would be quite stable," says Ken Nealson, a geobiologist at the University of Southern California. A hydrothermal field in the East China Sea holds the world's first known liquid CO2 lake (red star). Carbon dioxide bubbles emerge from an entire lake of carbon dioxide under the floor of the East China Sea, apparently causing no harm to deep-sea organisms (above). Could oceans serve as storehouses for excess atmospheric carbon dioxide? The answer to global warming may lie beneath the ocean. (photo: Japan Agency for Marine-Earth Science and Technology)

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