Gulf of Mexico oil spill one year later

[Meatpie]

Fire boat response crews spray water on the blazing remnants of BP's Deepwater Horizon offshore oil rig on April 21, 2010.

An exhausted oil-covered brown pelican sits in a pool of oil along Queen Bess Island Pelican Rookery, three miles northeast of Grand Isle, La. on June 5, 2010.

Dead sea turtles wash up on the same Waveland, Miss. beach on May 5, 2010 and April 14, 2011. Endangered sea turtles and dolphins are still dying in high numbers in Mississippi, which continues to be impacted by tar balls and weathered oil.

Institute for Marine Mammal Studies veterinary technician Wendy Hatchett prepares to take a skin sample from a dead bottlenose dolphin that was found decomposing on Ono Island, Ala. and brought for examination to Gulfport, Miss. Since January, 155 young or even fetal dolphins and small whales have washed up dead on Gulf beaches - more than four times the normal amount - according to the National Oceanic and Atmospheric Administration. A NOAA official called the oil spill "a possible cause" in the uptick in deaths

A Louisiana wildlife official displays oil from a marsh on April 19, 2011 in Middle Ground, La.

A woman walks along the beach as waves wash up from the Gulf of Mexico April 13 in Grand Isle, La. Residents report that oil still washes up onto the beach after storms.