Vernon Asper was one of the first researchers in the Gulf of Mexico to
study the oil gushing out from the BP well. But it has not all been
smooth sailing, reports Mark Schrope.

The BP spill is by far the world

The vast majority of the oil from the BP oil spill has either
evaporated or been burned, skimmed, recovered from the wellhead or
dispersed  much of which is in the process of being degraded. A
significant amount of this is the direct result of the robust federal
response efforts.