Sự cố tràn dầu Vịnh Mexico, tác động môi trường

A slick caused by the Deepwater Horizon oil spill, 06 May 2010. (NRL & USGS Image)

This US Coast Guard handout image shows crews conducting overflights of controlled burns taking place in the Gulf of Mexico, 19 May 2010. (AFP Image)

A Greenpeace activist steps through oil on a beach along the Gulf of Mexico near Venice, Louisiana, 20 May 2010. (AFP Image)

A dead oil-covered fish lies on the beach on Grand Isle, Louisiana, 20 May 2010. (AFP Image)

Oil is seen on the beach at Elmers Island, Louisiana, 21 May 2010. (AFP Image)

The largest oil patch is in the vicinity of the damaged well, but streamers of oil also spread to the northeast, 23 May 2010. (NASA image)

At least six million gallons of crude have spewed into the Gulf, 24 May 2010. (NASA/NOAA Image)

Sunlight illuminates the lingering oil slick off the Mississippi Delta, 24 May 2010. (NASA Image)

A BP cleanup crew shovels oil from a beach at Port Fourchon, Louisiana, 24 May 2010. (AFP Image)

An oil-stained brown pelican (r), stands next to a clean brown pelican on an island in Barataria Bay, Louisiana, 24 May 2010. (AFP Image)

BP plans 'top kil' procedure, 26 May 2010, which involves pumping heavy drilling fluid into the oil well to stop the flow of oil and gas. (© BP p.l.c)

Vụ dầu loang ở Vịnh Mexico trở thành một thảm họa sinh thái có tác động lâu dài, đe dọa sự sống của nhiều loài động vật hoang dã, và sinh kế của người dân trong vùng.