Global Governance: The Global Commons

The global commons are areas and resources that lie beyond the jurisdiction of any single state and are shared by all humanity. Governing these commons represents one of the greatest challenges of global governance — how do you manage shared resources when no single authority has control?

Key Definition: The global commons are areas and resources that are not owned by any nation-state and are available for use by all. They include the oceans (beyond national jurisdiction), the atmosphere, Antarctica, and outer space.

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The Tragedy of the Commons

The concept of the "tragedy of the commons" was popularised by ecologist Garrett Hardin (1968) in his influential essay in Science. Hardin argued that shared resources are inevitably overexploited because each individual user has an incentive to maximise their own use, even though this degrades the resource for everyone.

Hardin's Logic

graph TD
    A[Shared resource available to all] --> B[Each user maximises individual use]
    B --> C[Total use exceeds sustainable capacity]
    C --> D[Resource degraded or destroyed]
    D --> E[All users worse off]
    B --> F[No individual has incentive to restrain use]
    F --> C

Hardin used the analogy of a shared grazing pasture: each herder has an incentive to add more cattle, because the benefits of an additional cow accrue entirely to the individual herder, while the costs of overgrazing are shared among all users. The rational individual decision leads to collective ruin.

Critiques of Hardin

The political scientist Elinor Ostrom (1990), who won the Nobel Prize in Economics in 2009, challenged Hardin's pessimistic conclusion. In her book Governing the Commons, Ostrom demonstrated that communities can and do develop institutions to manage shared resources sustainably — without either privatisation or state control.

Hardin (1968)	Ostrom (1990)
Commons are inevitably degraded	Communities can manage commons sustainably
Solution requires either privatisation or government regulation	Solution can emerge from collective self-governance
Individuals are purely self-interested	People can cooperate when institutions allow it
Assumes no communication between users	Communication and trust-building enable cooperation

Exam Tip: The Hardin-Ostrom debate is essential for discussing global commons governance. Hardin explains why governance is needed; Ostrom explains how it can work. Use both when analysing specific commons (Antarctica, oceans, atmosphere).

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Antarctica: The Antarctic Treaty System

Antarctica is the world's most successful example of global commons governance. The continent has no indigenous population, no sovereignty claims are currently enforced, and it is managed through an international treaty system.

The Antarctic Treaty (1959)

The Antarctic Treaty was signed on 1 December 1959 by 12 nations (including the UK, USA, USSR, and Australia) and entered into force in 1961. It now has 54 signatory nations.

Key Provisions	Detail
Peaceful purposes only	Military activity, weapons testing, and nuclear explosions are prohibited
Freedom of scientific research	All nations can conduct scientific research; data must be shared
Sovereignty claims frozen	Seven nations (including the UK, Argentina, Chile) have territorial claims but these are neither recognised nor denied
No mining or mineral extraction	The Protocol on Environmental Protection (Madrid Protocol, 1991) designates Antarctica as a "natural reserve devoted to peace and science" and prohibits mining until at least 2048
Environmental protection	Strict regulations on waste disposal, wildlife disturbance, and introduction of non-native species

Why Has the Antarctic Treaty Succeeded?

Factor	Explanation
No indigenous population	No competing sovereignty claims based on habitation
Harsh environment	Limited economic interest (until recently) reduces incentive to exploit
Cold War context	Both superpowers had an interest in preventing the other from militarising Antarctica
Scientific cooperation	Shared scientific interest provided a basis for collaboration
Consensus decision-making	All decisions require agreement of all consultative parties

Challenges to Antarctic Governance

• Climate change — Antarctic ice melt contributes to global sea-level rise; the West Antarctic Ice Sheet alone contains enough ice to raise sea levels by approximately 3.3 metres
• Tourism — over 100,000 tourists visited Antarctica in the 2022-23 season, raising concerns about environmental impact
• Fishing — the Convention on the Conservation of Antarctic Marine Living Resources (CCAMLR, 1982) manages fishing but illegal, unreported, and unregulated (IUU) fishing remains a problem
• Future mineral extraction — as resources elsewhere become scarcer, pressure to exploit Antarctic minerals may grow; the Madrid Protocol's mining ban expires in 2048
• Bioprospecting — companies are investigating Antarctic organisms for pharmaceutical and commercial applications, raising questions about benefit-sharing

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Ocean Governance: UNCLOS (1982)

The United Nations Convention on the Law of the Sea (UNCLOS), adopted in 1982 and entering into force in 1994, is often called the "constitution for the oceans." It provides the legal framework for governing the world's oceans and seas.

Maritime Zones

UNCLOS establishes a series of maritime zones extending from a nation's coastline:

Zone	Extent from Coast	Rights
Territorial Sea	0–12 nautical miles	Full sovereignty; foreign vessels have right of innocent passage
Contiguous Zone	12–24 nautical miles	State can enforce customs, immigration, and pollution laws
Exclusive Economic Zone (EEZ)	0–200 nautical miles	Sovereign rights over natural resources (fish, oil, minerals); freedom of navigation for other states
Continental Shelf	Up to 350 nautical miles (if physical shelf extends)	Rights over seabed resources
High Seas	Beyond 200 nautical miles	Freedom of navigation, fishing, and scientific research; no state sovereignty
The Area (deep seabed)	Beyond national jurisdiction	Common heritage of mankind; managed by International Seabed Authority

graph LR
    A[Coastline] --> B["Territorial Sea<br>0-12nm"]
    B --> C["Contiguous Zone<br>12-24nm"]
    C --> D["EEZ<br>0-200nm"]
    D --> E["High Seas<br>Beyond 200nm"]