The Miami Herald has a good article on a recent study done by federal scientists on impact of the Gulf oil spill. "The report is the latest to suggest chemically-dispersed oil suspended near the sea floor did not become the drifting cloud of death some doomsayers had predicted. Instead, currents and oil-eating microbes appear to have steadily dissipated and degraded the crude in the two months since BP capped its well, said Steven Murawski, leader of a team of scientists that produced the report."