Three Alaska Native tribes have filed a lawsuit to overturn the U.S. Army Corps of Engineers permit granted to a company ...

Holt, one of Magellan’s offshore managers, said the aim was to test the physical requirements and environmental impacts of pulling up sulfide deposits. What would soon become unclear, however, was why ...

Why might the U.S. be interested in deep-sea mining, and what are the environmental risks? Here's what you need to know.