[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/05/11/art.lamarmckay8.gi.jpg caption=" Lamar McKay, president and chairman of BP America Inc., attends a Senate committee's hearing on Tuesday."]Washington (CNN) - As a Senate committee was grilling oil industry executives about the Gulf of Mexico oil spill, experts said there is an opportunity to learn from the catastrophe, but the lessons won't come from Congress.
On Tuesday at a hearing before the Senate Energy and Natural Resources Committee, three companies took turns blaming each other for the April accident that left 11 workers dead and oil still spewing into the Gulf.
Edward Overton, a professor emeritus of environmental sciences at Louisiana State University, said the blame game is an attempt by the companies to deny liability. The real lessons - and answers - can be learned in the Gulf, he said.
"We've got a problem right now and we've got to solve it and that's to try to mitigate what's going on now [in the Gulf] and studying the effects over time there," he said.
Ken Medlock, an energy fellow at Rice University, said understanding what caused the spill is "impossible at this point" because more needs to be learned at the scene.