The Ocean as a Balance Sheet

Emily Martin

When you look at a map of a country, are you looking at the whole country? For coastal nations, no.

Zach Martin

That's the question we're building this whole series on. Welcome to Ocean Capital Desk, an I R Hub Media and K M K T original. I'm Zach Martin.

Emily Martin

And I'm Emily Martin. This is the first episode of The Invisible Economy, and it's called The Country You Don't See. Our tone here is business desk. We're not doing a nature documentary. We treat the ocean as a set of legal rights, assets, and cash flows, and we ask who actually captures the value.

Zach Martin

One housekeeping item, and I'll say it once. Nothing on this show is investment advice. We're explaining how the system works, not telling you what to buy.

Emily Martin

Good. So let's start with the picture most of us carry around. A country is the shape you see on the map. The coastline is the edge. Past the edge is blue, and blue looks like nothing. But under the United Nations Convention on the Law of the Sea, usually shortened to UNCLOS, that blue space is divided into zones. Each zone carries a different bundle of rights. For a coastal nation, the economic map and the land map are two different maps.

Zach Martin

Think of it like a company with a headquarters building. The building is what visitors see. But the balance sheet might include leases, licenses, and rights that sit nowhere near the lobby. UNCLOS is the document that tells you what's on the ocean side of the balance sheet. Let's walk through four boundaries, from the shore outward.

Emily Martin

First, the territorial sea. It extends up to 12 nautical miles from the baseline, which is the line the coastal state measures from. Inside that band, the state has broad sovereignty. That covers the water, the seabed beneath it, and the airspace above it. The main qualifier is innocent passage. Foreign ships can pass through, provided the passage is not harmful to the coastal state. So it is sovereign, but it's not sealed.

Zach Martin

Second, the contiguous zone. This reaches up to 24 nautical miles from the baseline. It's a buffer. The coastal state doesn't get full sovereignty here. It gets specified enforcement jurisdiction. In practice, that means acting to prevent and punish violations of customs, fiscal, immigration, or sanitary rules that tie back to its territory or territorial sea. Think of a checkpoint just outside the front gate.

Emily Martin

Third, and this is the one that changes the economics, the Exclusive Economic Zone, the EEZ. This is Part V of the Convention, Articles 55 through 75. Article 57 says it shall not extend beyond 200 nautical miles from the baselines. And Article 56 is the heart of it. In the EEZ, the coastal state has sovereign rights for exploring and exploiting, conserving and managing the natural resources, whether living or nonliving. That covers the waters above the seabed, the seabed, and its subsoil.

Zach Martin

And it goes beyond resources you can pull up. Article 56 also names other economic activities in the zone, such as the production of energy from the water, currents, and winds. So fish, oil and gas, minerals, and also offshore wind, currents, and waves. That list is why the series exists.

Emily Martin

But here's the part people get wrong, and it matters for anyone reading a headline about ocean claims. An EEZ is not the same as land territory. It's a specific legal regime, and the text says so. Article 58 says that in the EEZ, all states, coastal or landlocked, keep the freedoms of navigation and overflight, and the freedom to lay submarine cables and pipelines. So a foreign ship can transit. A foreign aircraft can fly over. And a foreign company can lay a cable.

Zach Martin

So the coastal state owns the economic rights, not the whole space in the way it owns a province. I like to think of it as owning the mineral and fishing rights on a huge tract of land where the public road still runs through the middle. You control a lot. You don't control everything. And Article 56 adds that the coastal state has to have due regard for the rights of other states.

Emily Martin

The Convention also gives the coastal state tools to make those rights real. Article 60 says it has the exclusive right to authorize and regulate artificial islands and installations and structures for economic purposes. That includes jurisdiction over customs, fiscal, health, safety, and immigration rules on those structures. It can set safety zones around them, generally no more than 500 meters. And Article 60 is explicit that those structures don't have the status of islands. They don't create a territorial sea of their own, and they don't move the boundary.

Zach Martin

That's a detail that matters for an offshore wind farm or a platform. You can build it, you can regulate it, you can protect a zone around it. But you can't use it to expand your map.

Emily Martin

Fourth boundary, the continental shelf. It's legally distinct from the EEZ, and it's dealt with in Part VI of the Convention. The shelf is about the seabed and the subsoil, not the water above it. And in qualifying cases, a state's shelf can extend beyond 200 nautical miles. So you can have a situation where the EEZ ends but the seabed rights keep going.

Zach Martin

Two more mechanics from the text, because they show this is administrative as well as legal. Article 75 says the outer limits of the EEZ have to be shown on charts or listed as geographical coordinates, and a copy has to be deposited with the Secretary General of the United Nations. And Article 74 says that when two states with opposite or adjacent coasts overlap, they settle it by agreement, aiming for an equitable solution. A line on the water is a legal fact, a filing, and sometimes a negotiation.

Emily Martin

So that's the architecture. Territorial sea to 12, contiguous zone to 24, EEZ to 200, and a continental shelf that's its own category. Now let's put a real country inside it.

Zach Martin

Our recurring case is Sierra Leone. On land, the country covers about 71,620 square kilometers. That's the map most people picture.

Emily Martin

Offshore, the legal reach is up to 200 nautical miles into the Atlantic. Now, a caution about our own numbers. The sources we're working from give the land area, but they don't give an official square kilometer figure for Sierra Leone's EEZ. So we are not going to invent one. What we can say is that the offshore economic map can be far larger than the land map, and we'll treat that as the starting claim to test rather than a number to quote.

Zach Martin

That's discipline. If you're building a case, you don't fill the gap with a number that sounds good. You mark the gap and ask what it would take to close it. So let's do that. Let's run the questions a business desk would ask about that offshore space.

Emily Martin

Start with fish, because the Convention is most specific there. Article 61 says the coastal state determines the allowable catch, using the best scientific evidence available, so stocks aren't endangered by overexploitation. Article 62 says the state determines its own capacity to harvest. And where it can't harvest the entire allowable catch, it must give other states access to the surplus, under agreements and under its own terms and conditions.

Zach Martin

So the legal structure creates a very particular business question. What fish stocks actually exist off Sierra Leone? How much of the allowable catch can domestic operators harvest? And how much value leaves on foreign vessels, whether those vessels are licensed or not? Article 62 lets the coastal state attach conditions. Licensing fees. Quotas. Observers on board. Position reporting. And one that I find telling: requiring that some or all of the catch be landed in the coastal state's ports.

Emily Martin

Which connects fish to infrastructure. If a vessel lands its catch at a local port, there's potential for processing, cold storage, jobs, and tax. If the catch goes straight onto a foreign vessel and out, the value is created somewhere else. So one open question is the unrealized margin from onshore fish processing.

Zach Martin

Then there's enforcement. Article 73 lets the coastal state board, inspect, arrest, and bring judicial proceedings to ensure compliance. But it also says arrested vessels and crews must be promptly released on posting a reasonable bond, and that penalties for fisheries violations may not include imprisonment unless the states concerned agree otherwise. So enforcement is allowed, but it's bounded. A country needs the patrol capacity, the monitoring, and the legal process to use those rights. A right you can't monitor is a right with a discount.

Emily Martin

Next, aquaculture. Fish don't only come from the open ocean. The brief we're working from flags potential for brackish and marine aquaculture along river estuaries and sheltered coastal waters. Where could farming expand? What would it need in terms of power, feed, cold chain, and permits? That's a question about land and sea together.

Zach Martin

Energy. Article 56 gives the coastal state sovereign rights over energy from water, currents, and winds. So is offshore wind viable off Sierra Leone? What about currents or waves? The honest answer is that a legal right doesn't equal a project. You need wind and wave data, a way to connect to a grid that can take the power, and a buyer. Those are the commercial hurdles, and we'll flag them without pretending we've solved them.

Emily Martin

Then cables, which bring us back to Article 58. Other states keep the right to lay submarine cables in the EEZ. So the question isn't whether Sierra Leone owns the cables. It's which cables cross the region, where they land, and what domestic digital value a landing station can unlock. Data is moving through that corridor either way. The question is who captures part of the value.

Zach Martin

And the seabed. Part V says rights over the seabed and subsoil are exercised in accordance with Part VI, the continental shelf regime. So what's known about the seabed geology? The brief mentions deepwater hydrocarbon exploration history and geological surveys. We'd want to know what has been surveyed, by whom, and who holds the data. Data is an asset too.

Emily Martin

Last pair: shipping and ports. Where are the shipping lanes? Freetown is described in our brief as having a natural deepwater harbor. So what port infrastructure would unlock value? The brief points to regional bunkering and transshipment revenue as possible prizes. Those are possibilities to investigate, not claims we're making. The ships pass through either way. The question is whether they stop, and what they pay for when they do.

Zach Martin

Put all of those questions side by side and you can see why we need a framework. So let's introduce one. We call it the Ocean Balance Sheet.

Emily Martin

The idea is simple. For one coastal country, you list the offshore assets the way you'd list the assets of a company, and then you ask how much of the potential is actually used. Eleven lines. One, land area, the terrestrial base. Two, the EEZ, the offshore perimeter up to 200 nautical miles. Three, coastline length.

Zach Martin

Four, ports and maritime logistics. Five, fisheries, stocks and yields. Six, offshore energy, which includes wind, currents, and hydrocarbons. Seven, subsea cable landings and data pathways. Eight, international shipping lanes.

Emily Martin

Nine, marine protected areas and natural capital. Ten, aquaculture infrastructure. Eleven, seabed mineral and geological rights. For Sierra Leone, we start with one hard number, the 71,620 square kilometers of land, and a lot of open lines we're going to fill carefully.

Zach Martin

The key idea is what I'd call the utilization gap. On one side, the legal endowment, everything the Convention says the coastal state may explore, exploit, conserve, and manage. On the other side, what the domestic economy actually captures. The gap between them is the story. It can come from missing vessels, missing data, missing ports, missing grid capacity, or missing enforcement. And small improvements compound. Better monitoring of fishing, better port services, one more landing station, each is a step.

Emily Martin

And notice that marine protected areas sit on the same sheet as fisheries and energy. That's deliberate. Article 61 ties allowable catch to conservation. Natural capital isn't a footnote on a business desk. It's an asset you can deplete or maintain.

Zach Martin

This is episode one, so let's tell people where we're going. The Invisible Economy continues with nine more episodes. Who Owns the Fish. Who Owns the Ocean Floor. The Internet Is Underwater.

Emily Martin

The New Offshore Power Plant. The Ocean Mining Question. The Trillion Dollar Fish Problem.

Zach Martin

Can a Country Lease Its Ocean. The Ocean's Carbon Economy. And Who Owns the Wind.

Emily Martin

Each one takes a line from the balance sheet and follows the money and the law underneath it.

Zach Martin

If you want to work along with us, here's your next step. Open the tag ^SierraLeone on I R Hub. From there you can walk fisheries, ports, shipping, cables, and operators on the Capital Graph, and see who's connected to what.

Emily Martin

Because the first thing to understand about a coastal country is that the map you were shown is only part of it.

Zach Martin

The country you don't see. Ocean Capital Desk. An I R Hub Media, K M K T original.