Geography
Exclusive Economic Zones: Sovereign Rights over Marine Resources
Quick fact
The EEZ concept was codified in the 1982 UN Convention on the Law of the Sea, granting coastal nations rights over 200 nautical miles, covering about 38% of the world's ocean surface.
Why this is interesting
Imagine a country claiming an invisible zone stretching far out into the ocean, where it alone can fish and drill for oil. But what gives it that right?
Read the full explanation
Understanding Exclusive Economic Zones: Sovereign Rights over Marine Resources
An Exclusive Economic Zone (EEZ) is a sea area over which a coastal state has special rights to explore, exploit, and manage natural resources both in the water and on the seafloor. Imagine your backyard extends 200 miles from your house into the ocean—you don't own the water itself, but you have the exclusive right to fish, mine, and use the energy resources within it. This zone begins from the baseline (usually the low-water line along the coast) and extends outward 200 nautical miles (about 230 miles). Within this zone, the state can regulate fishing, oil exploration, and other economic activities, while other countries still have freedom of navigation and overflight, and can lay submarine cables. This dual nature makes the EEZ a 'sovereign right' rather than full sovereignty, meaning the state doesn't own the ocean but has exclusive access to its resources.
A deeper explanation
The concept of the EEZ emerged from post-World War II struggles among nations to control offshore resources, leading to the Third UN Conference on the Law of the Sea (1973–1982) that produced UNCLOS. The underlying principle is balancing coastal states' interests with the common heritage of the ocean. The coastal state has 'sovereign rights' over natural resources, both living (fish) and non-living (oil, gas, minerals), within the EEZ. This explains why countries like China's activities in the South China Sea and the US and Canada's disputes over the Arctic are so contested—whoever controls the EEZ gains huge economic power. The mechanism works through international law: by ratifying UNCLOS, states agree to respect each other's EEZs, and disputes are resolved through negotiation or international courts. Understanding EEZs illuminates global issues like overfishing, offshore drilling, and island sovereignty, as tiny islands can generate huge maritime claims. It also highlights the delicate balance between national rights and the rule of law on the high seas.