SARASOTA, Fla. - It's been nearly four years since the BP oil spill wreaked havoc in the Gulf of Mexico.
In April 2010, an explosion at the Deepwater Horizon oil rig the middle of the Gulf killed 11 people, and set in motion a chaotic environmental disaster.
More than 200 million gallons of oil poured out before the leak was plugged up, but the damage was already done.
Scientists from Mote Marine lab in Sarasota are working to determine the long term effects.
"In some locations, oil is still there," said Dr. Dana Wetzel, with Mote Marine Laboratory.