African debt and climate change: how the ICJ’s Vanuatu ruling could be used for broader justice

The International Court of Justice (ICJ) issued a unanimous advisory opinion on 23 July 2025, establishing that states have customary international legal obligations to prevent significant environmental harm and cooperate to protect the environment. The author contends that these obligations apply to the restructuring of African sovereign debt, as debt distress often forces states to choose between creditor payments and financing essential services like renewable energy and health. The document suggests three avenues for relief: using the ruling to bolster negotiations on the social and environmental costs of debt, reminding stakeholders of international norms such as the UNCTAD Principles on Promoting Responsible Sovereign Borrowing and Lending, and enabling activists to hold states and financial institutions accountable through mechanisms like National Contact Points or multilateral development bank accountability systems.

• On 23 July 2025, the International Court of Justice issued a unanimous advisory opinion stating that state obligations regarding the environment extend beyond signed treaties to include customary international law, which is binding on all states and international organisations.
• The ICJ identified two primary customary international legal obligations: a duty to prevent significant environmental harm through due diligence and impact assessments, and a duty to cooperate with other states to protect the environment, noting that a healthy environment is a prerequisite for human rights.
• The author argues that the ICJ ruling has direct implications for African sovereign debt restructuring because the actions taken to manage debt crises affect a state's ability to manage greenhouse gas emissions and uphold citizens' rights to life, health, and livelihoods.
• There are three proposed ways to apply the ICJ opinion to debt: using it to argue for the inclusion of environmental and social impacts in negotiations, referencing international norms (such as the UN Global Compact or World Bank Environmental and Social Framework) to define legal responsibilities, and empowering activists to hold debtors and creditors accountable.
• Non-state actors can utilize existing international mechanisms to hold creditors and debtors accountable for failing their environmental duties, including National Contact Points for OECD Principles, multilateral development bank accountability mechanisms, and national courts.

APA

South African Institute of International Affairs (2025). African debt and climate change: how the ICJ’s Vanuatu ruling could be used for broader justice. https://saiia.org.za/research/african-debt-and-climate-change-how-the-icjs-vanuatu-ruling-could-be-used-for-broader-justice/

Chicago

South African Institute of International Affairs. African debt and climate change: how the ICJ’s Vanuatu ruling could be used for broader justice. 2025. https://saiia.org.za/research/african-debt-and-climate-change-how-the-icjs-vanuatu-ruling-could-be-used-for-broader-justice/.

Wikipedia

{{cite report |author=South African Institute of International Affairs |title=African debt and climate change: how the ICJ’s Vanuatu ruling could be used for broader justice |date=1 September 2025 |url=https://saiia.org.za/research/african-debt-and-climate-change-how-the-icjs-vanuatu-ruling-could-be-used-for-broader-justice/ |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{southafricaninstituteofinternationalaffairs2025african, author = {{South African Institute of International Affairs}}, title = {{African debt and climate change: how the ICJ’s Vanuatu ruling could be used for broader justice}}, institution = {South African Institute of International Affairs}, year = {2025}, month = sep, url = {https://saiia.org.za/research/african-debt-and-climate-change-how-the-icjs-vanuatu-ruling-could-be-used-for-broader-justice/}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }