The high seas make up about two-thirds of the world’s ocean. These vast expanses of water are so far from shore that they fall outside the jurisdiction of any country.
While early explorers once thought of these areas as essentially barren, thanks to research over recent decades, we now know that the high seas hold some of the largest reservoirs of biodiversity on Earth. They support abundant fisheries, provide important migratory routes for whales and sharks, and brim with deep-water corals and other unique marine life.
These areas beyond national jurisdiction are rich in resources but scarce in oversight. A patchwork of rules and regulations provides little in the way of conservation safeguards to protect the greater marine ecosystem from growing commercial activities such as fishing, oil and gas exploration, and deep sea mining.
The development of marine protected areas and reserves—the equivalent of national parks at sea—would be a good first step toward providing some protection. Unfortunately, the world lacks an international legal instrument to establish such areas in high seas waters. The Pew Charitable Trusts’ project to protect ocean life on the high seas was launched to help change that.
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From majestic shark species to charismatic whales to little understood creatures of the deep, the high seas are home to some of the ocean's most interesting and valuable life. But the rules and regulations that should protect the high seas are a patchwork inadequate to the task, and this ocean ecosystem is at risk of becoming a resource used freely by all but owned and protected by no one. Read More
The world's largest tuna fishing grounds are found in the western and central Pacific Ocean, which is also home to a wealth of other marine life. Unfortunately, this vast region continues to be fished unsustainably—despite strong scientific and management advice to the contrary—while fishing capacity continues to grow. Read More