Long before BP's blowout menaced the Gulf of Mexico, an oil industry-related coastal crisis of another kind began unfolding all over the Mississippi River coastal delta. Dredging for navigation, oil and gas drilling and pipeline construction has ripped apart the estuary's fragile system of fresh and saltwater marshes.
Between 1901, when drilling began in Louisiana, and the 1980s, the oil and gas industry laid tens of thousands of miles of pipelines and dredged 9,300 miles of canals in an industrial invasion of a wetland that once covered 3.2 million acres. Since the 1930s, more than a third of it has vanished, an area the size of Delaware. Each year, 15,300 acres more disappear, according to Louisiana's Comprehensive Master Plan for a Sustainable Coast. Read on at Bloomberg
