Oil spill environmental impact to be debated for years
At first glance, the marshy, muddy coastline of Bay Jimmy in southeast Louisiana appears healthy three years after the nation’s worst offshore oil spill. Brown pelicans and seagulls cruise the shoreline, plucking fish and crabs from the water. Snails hold firm to tall blades of marsh grass.
Underneath the surface, environmentalists and scientists fear there may be trouble, from tiny organisms to dolphins. Yet the long-term environmental impact from the spill is still not fully known and will likely be debated for years to come.
BP has spent billions of dollars on cleanup efforts since the Deepwater Horizon rig exploded and a well ruptured April 20, 2010, spilling 200 million gallons of crude.
The oil fouled 1,110 miles of beaches and marsh along Louisiana, Mississippi, Alabama and Florida. Fishing waters were closed and thousands of people who depend on the Gulf’s deep blue waters wondered if the coast would ever be the same again. Crews continue to find oil buried underneath beaches whenever a tropical storm stirs up the Gulf.
“Visually, the coast looks great, and I think most of what was visible is gone,” said David Muth, director of the National Wildlife Federation’s Mississippi River Delta Restoration Program.
Nearly every aspect of the spill’s environmental impact is under review, though much of the research cannot be released because it’s likely going to be evidence in an ongoing trial.
The trial’s first phase ended without any rulings from the judge who heard eight weeks of testimony from witnesses for the federal government, a team of plaintiffs’ attorneys, BP, rig owner Transocean Ltd. and cement contractor Halliburton.
The first phase was designed to identify the causes of BP’s well blowout and assign percentages of fault. The second phase, set to start in September, is supposed to determine how much oil spilled into the Gulf and examine BP and Transocean’s efforts to stop the gusher.
Damage can take years to show up. Herring populations looked normal after Alaska’s Exxon Valdez oil spill in 1989, but by 1993 there were only one-quarter as many spawning adults as in the late 1980s.
In Bay Jimmy, erosion has been a problem, but that was the case long before the spill. Different studies have come up with different answers about whether the spill increased the rate of erosion.
As the studies continue, so do cleanup efforts. On the beach at Grand Isle, crews were still finding tar balls washing ashore. They were also drilling through the sand to find deposits of oil.
Source: Huffington Post
