Introduction
The 1982 United Nations Convention on the Law of the Sea (UNCLOS) is the most comprehensive attempt at creating a unified regime for governance of the rights of nations with respect to the world's oceans. The treaty addresses a number of topics including navigational rights, economic rights, pollution of the seas, conservation of marine life, scientific exploration, piracy, and more. The treaty, one of the longest in history, is comprised of 320 articles and 9 annexes, representing the codification of customary international law and its progressive development.Historical Background
Since humanity first set forth upon the seas, the issue of sovereign control over the oceans has been an ongoing concern. Prior to the 20th century, the oceans had been subject to the freedom of the seas doctrine. This principle, adopted in the 17th century, limited national rights and jurisdiction over a narrow band of water along a nations coast, the rest of the sea being free to all and belonging to none. Nearly a century later, the "cannon-shot" rule became the basis for determining how much of the adjacent oceans were under the jurisdiction of a nation. The cannon-shot rule set forth that a nation controlled a territorial sea as far as a projectile could be fired from a cannon based on shore. In the 18th century this range was approximate three nautical miles. As time progressed, three miles became the widely accepted range for the territorial sea.[1]Due to the slow pace of technological developments prior to the Industrial Revolution, these simple rules provided effective governance of the world's oceans. With the technological developments of the mid-19th and early-20th centuries, however, not only did ships become more powerful, but technology allowed humanity to exploit ocean resources that had never before been envisioned. Fishermen, once limited to areas near their own coasts, were now equipped with vessels that could allow them to stay at sea for months at a time and capture fish harvests that were far from their native waters. Virtually unrestrained, fleets from around the world traveled to areas rich in fish-stocks. The lack of restraint on the part of these fishermen resulted in fish stocks around the world being depleted without regard to the stability of their numbers.[2]
Evolving technology also allowed for the exploitation of previously inaccessible off-shore resources, most notably oil (but also diamonds, gravel, and precious metals). To illustrate the rapidity of these developments, in 1947 off-shore oil production in the Gulf of Mexico was still less than 1 million tons. By 1954, production had grown close to 400 million tons.[3] As a matter of perspective, just in the Gulf of Mexico, the United States alone currently produces 218,192 tons daily, for a total of 79.6 million tons annually, reflecting a steadily decreasing trend that began in the 1970's.[4]
In order to protect local resources, be they biological or mineral, nations began expanding their claims of sovereignty beyond the traditional 3 mile limit. The first nation to challenge the long-standing freedom of the seas doctrine was the United States. On September 28, 1945, President Harry S. Truman signed what has become commonly known as the Truman Proclamation. The proclamation set a claim of sovereignty by the United States to the outer continental shelf (OCS) and the resources therein as well as establishing the right of the U.S. to establish conservations zones "in areas of the high seas contiguous to the coasts of the United States."[5] While recognizing some limited sovereignty over an expanded region of the sea, the proclamation was careful to stipulate that the new US policy did not affect "the right [of] free and unimpeded navigation."[6]
After the United States expanded its claim, it was not long before other nations followed suit. By 1950, Argentina was actively claiming its continental shelf as well as the water column above it, Ecuador, Chile, and Peru were asserting rights over a 200-mile zone in order to protect its biological resources from foreign fleets, and a spate of Arab and Eastern European nations were laying claim to a 12-mile territorial sea. There was a growing understanding, however, that such a fractured regime could not continue.[7]
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UNCLOS 1982
