Thanks for mentioning "Corexit" marymac!
Corexit use was criminal, and should be banned as in the UK - make oil "disappear" - from the surface only, dropping the highly toxic mix into deep waters! The US under Obama & Int Sec, Ken Salazar including the coast Guard approved using Corexit! Another example of environmental apathy, ignorance, incompetence and collusion by the Obama Administration!
How much of this BS pennies on the dollar "settlement" included increased damage from Corexit? There are more corporations, officials responsible for destruction of the Gulf biosystem than just BP! $20 billion is a drop in the bucket of real destruction done to Gulf waters and adjacent lands!
This "settlement" story needs expanding and finishing!
"Deepwater Horizon - the worst oil spill in US history. The images are unforgettable: The Gulf of Mexico on fire. Pelicans emerging from the water entirely covered in thick, black oil. Planes flying overhead, spraying more than a million gallons of an oil-dispersing chemical called Corexit in an attempt to control the spill"
"mixtures of Corexit and oil were up to 52 times more toxic to microscopic animals known as rotifers than oil alone. Several leading scientists believe that the use of dispersants contributed to the environmental catastrophe that occurred throughout the Gulf, including the destruction of coral reefs. Studies have found that dispersants—as well as dispersant/oil mixtures—are more deadly to coral and coral larvae than oil by itself."