echnological advances have made the extraction of deep sea mineral and precious metal deposits feasible, and the dwindling supply of land-based materials creates compelling economic incentives for deep sea industrialization. But at what cost? Plans to begin mining nodules of valuable metals from deep ocean deposits have oceanographers concerned about the lack of public awareness or international agreements governing these habitats. "The deep sea is out of sight, out of mind ... there's a whole level of concern that isn't being expressed when it comes to deep sea industrialization," an expert said....