International law provides the formal framework within which global actors are expected to operate. However, unlike domestic law, international law lacks a centralised enforcement authority — compliance depends largely on state consent, political will, and reputational incentives. In VCE Politics, students must evaluate both the effectiveness of international legal instruments in addressing a chosen global issue, and the extent to which global actors comply with those laws.
KEY TAKEAWAY: International law is binding in theory but voluntary in practice. Its effectiveness depends on the mechanisms for enforcement, the level of state buy-in, and the presence of institutions capable of holding actors accountable.
International law encompasses:
| Type | Description | Examples |
|---|---|---|
| Treaties | Binding agreements between states that have ratified them | Paris Agreement, NPT, Geneva Conventions |
| Customary international law | Practices accepted as legally binding through consistent state practice | Prohibition on torture, rules of war |
| International court decisions | Rulings by the ICJ, ICC, WTO dispute panels | ICJ ruling on nuclear weapons (1996); ICC prosecutions |
| UN Security Council resolutions | Binding on all UN members when adopted under Chapter VII | UNSC Resolution 1373 (counter-terrorism) |
| Soft law | Non-binding guidelines, declarations, norms | UN Sustainable Development Goals; Universal Declaration of Human Rights |
The Paris Agreement (2015) requires signatories to:
- Submit Nationally Determined Contributions (NDCs) every five years
- Report transparently on progress
- Progressively increase ambition (the ratchet mechanism)
Critically, NDCs are self-determined — states decide their own targets. There is no penalty for missing them.
Strengths:
- Near-universal participation (196 parties)
- Created a global norm that net-zero is necessary
- Transparency mechanism creates reputational accountability — public scrutiny of NDC progress
- Facilitated $COP28 Loss and Damage Fund** (2023) — acknowledging that some adaptation is beyond prevention
Weaknesses:
- No enforcement mechanism: states that miss targets face no legal sanction
- NDCs collectively insufficient: Climate Action Tracker (2023) assessed that current policies put the world on track for 2.5–2.9°C of warming, well above 1.5°C
- Major emitters (USA, China) repeatedly fall short: US emissions in 2023 were still 17% above 2005 levels despite pledging 50–52% reduction by 2030
- Power asymmetry: The UNFCCC consensus requirement means one large state can block progress (e.g. India and China blocking coal phaseout language at COP26)
| State | Commitment | Compliance Assessment |
|---|---|---|
| EU | 55% reduction by 2030 (vs 1990) | On track via European Green Deal |
| USA | 50–52% reduction by 2030 (vs 2005) | Behind — Inflation Reduction Act helps but insufficient |
| China | Peak emissions before 2030, neutrality by 2060 | Ambiguous — still approving coal plants |
| Australia | 43% reduction by 2030 (vs 2005) | Legislated 2022; trajectory uncertain |
| India | 45% emissions intensity reduction by 2030 | On track for intensity but absolute emissions rising |
The Nuclear Non-Proliferation Treaty (NPT, 1968) prohibits non-nuclear states from acquiring nuclear weapons and obligates nuclear states to disarm. Its effectiveness is deeply contested:
EXAM TIP: The NPT example illustrates a critical tension: powerful states that benefit from the status quo can frustrate more ambitious legal frameworks. Use this to argue that the political will of major powers is the primary determinant of international legal effectiveness.
In the absence of a global enforcement body, non-state actors play a critical role in holding states accountable:
COMMON MISTAKE: Avoid saying international law is simply “ineffective” because it lacks enforcement. Instead, argue that its effectiveness is variable and conditional — it works better in some contexts than others, and non-state actors extend its reach beyond what formal institutions alone can achieve.
VCAA FOCUS: VCAA assessors want you to evaluate — not just describe — the effectiveness of international law. Use specific examples to support a nuanced argument about when and why law succeeds or fails to shape actor behaviour.
