A man trying to remove oil spill from the surface of the water, USA

The thick sludge of oil covering the sea after an oil spill, Mississippi Delta, USA

Dead turtles found along the Gulf coast after an oil spill, USA

Dead fish washing up along the Gulf Coast after an oil spill, USA

Pelican was rescued from the Deepwater Horizon oil spill on April 20th, 2010

A wash down facility to treat wildlife harmed by an oil spill

Oil can be seen on beaches, rocks and the bamboo throughout the south west passage of the Mississippi Delta

Bird rescue staff look for oiled birds along the south west passage of the Mississippi Delta

Pelican rescued from the Deepwater Horizon oil spill on April 20th, 2010

A seabird, dead likely as a result of an oil spill

Dead turtles have been found along the Gulf coast since the BP oil spill

BP-hired workers bail straw into barriers along Dauphin Island's beaches