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

Some countries are uniquely isolated, surrounded entirely by water. These nations have no land borders, making them stand out on the map.

Russian President Vladimir Putin and Chinese Foreign Minister Wang Yi shake hands during their meeting at the Kremlin in ...

Advancing the Biodiversity Beyond National Jurisdiction agreement will be a major focus at the upcoming United Nations Ocean ...