For all the nonstop news coverage of the massive oil spill that fouled the Gulf of Mexico after an explosion at an offshore rig a year ago Wednesday, there is still much about the damage that's not visible to the naked eye — at least not yet. . . .
For instance, government and university scientists are still trying to reach consensus on where all the oil went. . . .
Research is providing some answers about the short-term impact the spill had on the health of both humans and the Gulf Coast marshes. So far, the results are encouraging. The final verdict may have to await results of longer-term studies.
Meanwhile, efforts to resume drilling continue, even as some experts say new safeguards in place to prevent another spill don't go far enough.
If no one knows the human and environmental health costs of deep water oil spills, why would we permit deep water oil drilling at this time?