New map highlights sinking Louisiana coast

Researchers at Tulane University have developed a subsidence map of coastal Louisiana, putting the rate at which this region is sinking at just over one third of an inch per year.

Mad scramble as oil slick nears Louisiana coast

Offshore winds pushed a giant oil slick closer to the Louisiana coast Thursday amid a frenzied effort by authorities to contain what one official said had become a disaster of "national significance."

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