Oceans

Learn about some of the most pressing challenges to ocean health, how the U.S. government is working to address them, and what you can do to help.

Modern maritime law grew out of a big question: How much should a state control beyond its coasts? States control a narrow band of territorial waters; international waters belong to no one.

The United States is supporting freedom of navigation around the world, challenging maritime claims that are inconsistent with international law.

U.S. scientists have determined that a critically endangered whale is actually a new species. Learn more about the discovery of Rice's whale.

Working with its partners, the U.S. Coast Guard is training the next generation of Arctic sailors and helping to ensure a secure, rules-based Arctic Region.

As a part of the U.S. Coast Guard's Operation Southern Cross, the USCGC Stone is making its first patrol in the South Atlantic to combat illegal fishing.

The United States plans to invest in projects that aim to clear the plastic out of the world's oceans. Learn more about the initiative here.

A U.S.-European mission sent a satellite into space to collect information about rising sea levels that will help scientists and first responders.

China's dark fishing fleet poses far-reaching threats to legitimate commerce, food security and marine ecosystems, experts say.