BBC:

Oil from BP's damaged Gulf of Mexico well is clearing from the sea surface faster than expected, scientists say, 100 days after the disaster began.

Jane Lubchenco, head of the National Oceanic and Atmospheric Administration, said much oil had been "biodegraded by naturally occurring bacteria".
All that matters to these people is the information of the surface, the seen. This type of information has a long history of being unreliable.