United Nations members reach accord to protect marine life on high seas

For the first time, United Nations members have agreed on a unified treaty to protect biodiversity in the high seas - nearly half the planet's surface - concluding two weeks of talks in New York.

The UN Convention on the Law of the Sea came into force in 1994, before marine biodiversity was a well-established concept.

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 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."

Now that long-awaited treaty text has been finalised, Nichola Clark, an oceans expert at the Pew Charitable Trusts who observed