07/04/2010 05:12 am ET | Updated May 25, 2011

BP Oil Spill Clean-Up: What Exactly Are They Putting In The Gulf?

BP has bought up more than a third of the world's supply of dispersants, or chemical substances used to break up and sink oil to prevent it from hitting land. The problem is, no actually knows what chemicals are in many of these dispersants, or the impacts they may have on marine ecosystems.

Read more on Mother Jones