For the first time, United Nations members have agreed on a unified treaty to protect biodiversity in the high seas — representing a turning point for vast stretches of the planet where conservation has previously been hampered by a confusing patchwork of laws.
The U.N. Convention on the Law of the Sea came into force in 1994, before marine biodiversity was a well-established concept. The treaty agreement concluded two weeks of talks in New York.
The last international agreement on ocean protection was signed 40 years ago in 1982 — the U.N. Convention on the Law of the Sea, according to BBC News.
An updated framework to protect marine life in the regions outside national boundary waters, known as the high seas, had been in discussions for more than 20 years, but previous efforts to reach an agreement had repeatedly stalled. The unified agreement treaty, which applies to nearly half the planet’s surface, was reached late Saturday.
“We only really have two major global commons — the atmosphere and the oceans,” said Georgetown marine biologist Rebecca Helm. While the oceans may draw less attention, “protecting this half of earth’s surface is absolutely critical to the health of our planet.”
Nichola Clark, an oceans expert at the Pew Charitable Trusts who observed the talks in New York, called the long-awaited treaty text “a once-in-a-generation opportunity to protect the oceans — a major win for biodiversity.”
The treaty will create a new body to manage conservation of ocean life and establish marine protected areas in the high seas. And Clark said that’s critical to achieve the U.N. Biodiversity Conference’s recent pledge to protect 30% of the planet’s waters, as well as its land, for conservation.
Stephane Dujarric, Spokesman for U.N. Secretary-General Antonio Guterres, hailed the agreement as “a victory for multilateralism and for global efforts to counter the destructive trends facing ocean health, now and for generations to come.”
Treaty negotiations initially were anticipated to conclude Friday, but stretched through the night and deep into Saturday. Rebecca Hubbard, the director of the High Seas Alliance, called it a “two week long rollercoaster ride of negotiations and super-hero efforts in the last 48 hours.”
The crafting of the treaty, which at times looked in jeopardy, represents “a historic and overwhelming success for international marine protection,” said Steffi Lemke, Germany’s environment minister.
“For the first time, we are getting a binding agreement for the high seas, which until now have hardly been protected,” Lemke said. “Comprehensive protection of endangered species and habitats is now finally possible on more than 40% of the Earth’s surface.”
The treaty also establishes ground rules for conducting environmental impact assessments for commercial activities in the oceans.
“It means all activities planned for the high seas need to be looked at, though not all will go through a full assessment,” said Jessica Battle, an oceans governance expert at the Worldwide Fund for Nature.
Several marine species — including dolphins, whales, sea turtles and many fish — make long annual migrations, crossing national borders and the high seas. Efforts to protect them, along with human communities that rely on fishing or tourism related to marine life, have long proven difficult for international governing bodies.
“This treaty will help to knit together the different regional treaties to be able to address threats and concerns across species’ ranges,” Battle said.
That protection also helps coastal biodiversity and economies, said Gladys Martínez de Lemos, executive director of the nonprofit Interamerican Association for Environmental Defense focusing on environmental issues across Latin America.
“Governments have taken an important step that strengthens the legal protection of two-thirds of the ocean and with it marine biodiversity and the livelihoods of coastal communities,” she said.
“This agreement will create a coordinated approach to establishing marine protected areas on the high seas which will be critical to meeting our shared goal of conserving or protecting at least 30 percent of the global ocean by 2030. Biodiversity is declining at a catastrophic rate,” said Monica Medina, U.S. Assistant Secretary, Bureau of Oceans and International Environmental and Scientific Affairs.
John Kerry, President Biden’s Special Presidential Envoy for Climate, weighed in to say the treaty, “though it doesn’t get all the focus of the world, it really should because we’ve lost half the species on the planet and we’re not heading in a good direction.”
The question now is how well the ambitious treaty will be implemented.
Formal adoption also remains outstanding, with numerous conservationists and environmental groups vowing to watch closely.
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The high seas have long suffered exploitation due to commercial fishing and mining, as well as pollution from chemicals and plastics. The new agreement is about “acknowledging that the ocean is not a limitless resource, and it requires global cooperation to use the ocean sustainably,” Rutgers University biologist Malin Pinsky said.
CBS News correspondent Pamela Falk contributed to this report.
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