MOBILE, Ala. - A year ago, at the height of the Deepwater Horizon oil spill, much of the seafloor off the Alabama coast was dead. Scientists blamed a plume of low oxygen water. But things look much different now. Several times this spring and as recently as last week, the Press-Register returned to three natural gas platforms visited during the summer of 2010. Instead of swimming through a dead sea and finding oxygen levels far below the threshold required to support marine animals, there was abundant life. A portable oxygen meter found it rich in oxygen from the surface to the seafloor. (Source: Mobile Press-Register, 08/21/11)