The Oil Threat from Sunken Vessels
But given the difficulty of confirming information about submerged shipwrecks, there are many uncertainties about the estimates. For example, the NOAA says that 47 of the 87 priority vessels have unknown or unconfirmed locations. Unconfirmed locations include vessels where divers have reported finding a shipwreck, but definitive identification of the shipwreck has not been made. […]