On this map, 200–nautical mile exclusive economic zones are shown in light blue, and the high seas, which will be covered by the new treaty, are in dark blue.

High Seas Treaty on Marine Biological Diversity

The new treaty is underpinned by the United Nations Convention on the Law of the Sea (UNCLOS), which defines coastal state jurisdiction and establishes the international high seas.

Captain Lawson W. Brigham, U.S. Coast Guard (Retired)
September 2023
barge tow

Shallow Waters: Climate Change and World Shipping

Considering rapidly changing global weather patterns, now is the time to consider remedies that will extend commercially viable use of affected waterways.

Captain Don Walsh, U.S. Navy (Retired)
July 2023
Ships from Denmark, Finland, Germany, Lithuania, Poland, Sweden, the United Kingdom, and the United States

Future Challenges for the Baltic Sea

The environmental security challenges in the Baltic Sea will likely intensify in the decades ahead with increasing marine traffic and regional warming.

Captain Lawson W. Brigham, U.S. Coast Guard (Retired)
May 2023
oceans

The Black Sea: A Unique Place

If there are war activities in the region, Turkey may prohibit passage of military vessels of any of the combatants.

Captain Don Walsh, U.S. Navy (Retired)
November 2022
shipping container

Green Corridors for Global Shipping

Recognizing an urgent need for action on climate issues, the International Maritime Organization has mandated GHG emissions be reduced by 50 percent for all vessels by 2050.

Captain Lawson W. Brigham, U.S. Coast Guard (Retired)
September 2022
Greenland

Greenland’s Vast Ice Sheet Is Melting

Overall, the Arctic region is warming three to four times faster than the rest of the planet. By 2100, many populated coastal areas worldwide will be flooded and abandoned.

Captain Don Walsh, U.S. Navy (Retired)
July 2022
USS Santa Fe (SSN-763) joins the Royal Australian Navy submarines

AUKUS and Quad Have Eyes on China

Two important maritime developments in 2021 will influence events in the Indian Ocean for quite some time.

Rear Admiral Sudarshan Shrikhande, Indian Navy (Retired)
May 2022