The EPA issued a report Monday that suggests the dispersant used by BP in the Gulf oil spill, Corexit, doesn't form a more toxic stew when mixed with oil. The dispersant was also no more toxic than seven other alternatives, the study concluded.
Rep. Edward Markey says documents released by his office Saturday cast doubt on BP's assertion that it used 1.8 million gallons of the toxic and controversial oil dispersant, Corexit.
Criticism of Obama for his handling of the Gulf oil spill, though still muted, sounds much like that of President Bush after Katrina.
The effort to contain the Gulf oil spill has had more twists and turns than a mystery novel. This rundown of events so far also shows what is ahead in the struggle to clean up the Gulf of Mexico.
Raining oil? A video purports to show the aftermath of an oily rain that has left a rainbow sheen on the streets of River Ridge, Louisiana. The EPA says that an oily rain is highly unlikely.
BP has not met the EPA's mandate that it switch to a new dispersant, saying there aren't any other viable options for the Gulf oil spill. But the EPA says it's 'not satisfied,' and the manufacturer of a different dispersant insists it can meet BP's needs.
The EPA and Homeland Security Department have ordered BP to produce all the data it's collected on the Gulf oil spill since the Deepwater Horizon oil rig exploded last month. BP has yet to comply.
After saying last week that it had no authority to tell BP which disperant to use for the Gulf oil spill, the EPA on Thursday told BP to switch dispersants to one that is less toxic.
BP says its siphon is collecting one-fifth of the oil leaking into the Gulf of Mexico. But questions linger over BP's use of underwater dispersants in the Gulf oil spill.
The one BP is using to break up the Gulf oil spill has been approved by the EPA. But it's an older mixture that contains toxic ingredients, and it's not among the top tier of recommended dispersants.