This undated illustration provided by Hilcorp Alaska Inc. shows a model of an artificial gravel island of the Liberty Project, a proposal to drill in Arctic waters from the artificial island. Alaska Natural Resources Commissioner Andy Mack says oil production on gravel islands in state waters show that the Liberty Project can be done safely. Opponents say spills are inevitable and Arctic offshore oil should stay in the ground. (Hilcorp Alaska Inc. via AP)
Featured Photo Galleries
