Gulf Coast Towns Brace as Huge Oil Slick Nears Marshes

NEW YORK TIMES
By LESLIE KAUFMAN and CAMPBELL ROBERTSON
COCODRIE, La. — Oil gushed into the Gulf of Mexico unabated Saturday, and officials conveyed little hope that the flow could be contained soon, forcing towns along the Gulf Coast to brace for what is increasingly understood to be an imminent environmental disaster.

The spill, emanating from a pipe 50 miles offshore and 5,000 feet underwater, was creeping into Louisiana’s fragile coastal wetlands as strong winds and rough waters hampered cleanup efforts. Officials said the oil could hit the shores of Mississippi and Alabama as soon as Monday. The White House announced that President Obama would visit the region on Sunday morning.

Adm. Thad W. Allen, the commandant of the Coast Guard, who is overseeing the Obama administration’s response to the spill, said at a news conference Saturday evening that he could not estimate how much oil was leaking per day from the damaged underwater well. “There’s enough oil out there that it’s logical it’s going to impact the shoreline,” Admiral Allen said.

The imperiled marshes that buffer New Orleans and the rest of the state from the worst storm surges are facing a sea of sweet crude oil, orange as rust. The most recent estimate by the National Oceanic and Atmospheric Administration said the wreckage of the Deepwater Horizon rig, which exploded on April 20 and sank days later, was gushing as much as 210,000 gallons of crude into the gulf each day. Concern is mounting that the flow may soon grow to several times that amount.

The wetlands in the Mississippi River Delta have been losing about 24 square miles a year, deprived of sediment replenishment by levees in the river, divided by channels cut by oil companies and poisoned by farm runoff from upriver. Hurricanes Katrina and Rita took large, vicious bites. The questions that haunt this region are how much more can the wetlands take and does their degradation spell doom for an increasingly defenseless southern Louisiana?

Many variables will dictate just how devastating this slick will ultimately be to the ecosystem, including whether it takes days or months to seal the leaking oil well and whether winds keep blowing the oil ashore. But what is terrifying everyone from bird watchers to the state officials charged with rebuilding the natural protections of this coast is that it now seems possible that a massive influx of oil could overwhelm and kill off the grasses that knit the ecosystem together.

Healthy wetlands would have some natural ability to cope with an oil slick, said Denise Reed, interim director of the Pontchartrain Institute for Environmental Sciences at the University of New Orleans. “The trouble with our marshes is they’re already stressed, they’re already hanging by a fingernail,” she said. It is possible, she said, that the wetlands’ “tolerance for oil has been compromised.” If so, she said, that could be “the straw that broke the camel’s back.”