Pacific Small Island Developing States (PSIDS), alongside other developing nations, are actively pursuing new international legal norms aimed at ensuring that industrialised countries fulfill their responsibilities concerning climate change, development, and ocean conservation. This movement gains momentum as governments convene in France for the UN Conference on the Ocean, where Vanuatu and its counterparts are advocating for international court interventions to clarify state obligations in tackling climate change.
Since 2021, Vanuatu has spearheaded a campaign urging the UN General Assembly to solicit an advisory opinion from the International Court of Justice (ICJ) regarding the intersection of climate action and human rights. In March 2023, the General Assembly took the crucial step of requesting the ICJ to detail the responsibilities of states in relation to climate change and the repercussions of failure to meet these duties. The court, which serves as the highest legal authority globally, received extensive submissions from approximately 100 nations and organizations last year, with deliberations ongoing and a decision anticipated soon.
During the proceedings, several industrialized and fossil fuel-producing nations, such as Germany, Australia, Saudi Arabia, and the United States, contended they have no binding legal obligations beyond the optional commitments established under the 1992 UN Framework Convention on Climate Change. However, Vanuatu and other small island states are determined to challenge this notion by seeking decisive rulings from multiple legal forums to create clarity on the obligations related to climate change, which could influence national and regional cases and the ongoing UNFCCC negotiations.
Ralph Regenvanu, Vanuatu’s Minister for Climate Change Adaptation, emphasized the critical need for robust international legal standards at this juncture, saying, “We are at a turning point where worsening climate impacts are meeting growing calls for legal action and real change.” He highlighted alarming trends, noting that scientists warn of a limited window to take effective action to mitigate severe climate change impacts, including accelerated sea-level rise.
Significantly, a recent ruling from the International Tribunal for the Law of the Sea (ITLOS) reaffirmed that greenhouse gas emissions qualify as marine pollution, establishing a compelling legal precedent. The upcoming ICJ ruling will tackle the specific obligations states hold under international law regarding climate protection and the potential legal consequences of failing to adhere to those responsibilities.
This month’s UN Conference on the Ocean will not only focus on ocean-related issues but also emphasize the interconnectedness of climate action and the protection of marine environments. Regenvanu, along with other island leaders, aims to secure impactful declarations and actionable commitments during the summit. He stressed that the Nice Ocean Action Plan should adhere to established legal standards and that ocean protection must be central to global climate response efforts.
Despite the challenges of dwindling international aid budgets and competing governmental priorities like military spending, there remains hope for a unified push toward justice and action against climate change. Regenvanu expressed the belief that reallocating funds enjoyed by the fossil fuel industry toward climate adaptation and recovery initiatives could bring much-needed resources to the frontlines of climate impact.
In conclusion, Vanuatu’s legal initiative signifies an essential stride toward establishing enforceable international standards that hold states accountable for their contributions to climate change, illustrating both the urgency of the situation and the potential for collaborative, effective action in the face of a global crisis.
The anticipated ICJ advisory opinion promises to not only provide legal clarity but also foster increased political ambition and commitment to actionable climate measures, making it a landmark moment in the pursuit of climate justice.

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