Deepwater Horizon litigation to communicate with BP through their attorneys and to take orders from their attorneys." The contracts have the added impact of limiting the number of scientists who are able to work with federal agencies. In August 2010, 77 cases, including those brought by state governments, individuals, and companies, in the U.S. District Court for the Eastern District of Louisiana under Multi-District Litigation docket MDL No. 2179, captioned "In re: Oil Spill by the Oil Rig "Deepwater Horizon" in the Gulf of Mexico, on April 20, 2010", presided over by U.S. District Judge Carl Barbier. Judge Barbier is trying the case
Environmental impact of the Deepwater Horizon oil spill that the damage from the spill would rapidly resolve, three years into the recovery dolphins continue to die, fish are showing strange lesions, corals in the gulf have died and oil still remains in some marsh areas. Due to both its size and the way it was handled, there is little previous research to predict long-term effects. At the 2013 "Gulf of Mexico Oil Spill and Ecosystem Science Conference", oceanographer David Hollander presented data that showed as much as one-third of the oil released during the spill may still be in the gulf. Researchers described a phenomenon called "dirty blizzard":