Monday, February 18, 2008

Nothing to Worry About, Really!


Not only do we have the massive "dead zone" in the Gulf but since 2002 they have begun appearing in the Northwest. Marine researchers appear to have figured out the cause of the massive low-oxygen "dead zones" that have reappeared off the coast of Oregon every summer since 2002:

"We couldn't believe our eyes," [Jane] Lubchenco said, recalling her initial impression of the carnage brought about by oxygen-starved waters. "It was so overwhelming and depressing. It appeared that everything that couldn't swim or scuttle away had died.

Upon further study, Lubchenco and other marine ecologists at Oregon State University concluded that that the undersea plague appears to be a symptom of global warming. In a study released today in the journal Science, the researchers note how these low-oxygen waters have expanded north into Washington and crept south as far as the California state line. And, they appear to be as regular as the tides, a lethal cycle that has repeated itself every summer and fall since 2002.

"We seem to have crossed a tipping point," Lubchenco said. "Low-oxygen zones off the Northwest coast appear to be the new normal."

....If this theory holds up, it means that global warming and the build-up of heat-trapping gases are bringing about oceanic changes beyond those previously documented: a rise in sea level, more acidic ocean water and the bleaching of coral reefs.

Don't worry about it though. Ignore that fact that this is/was a major fishery. Definitely nothing to worry about.

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