The United Nations’ highest court, the International Court of Justice (ICJ), issued a unanimous advisory opinion last week, declaring that greenhouse-gas emissions may constitute an “internationally wrongful act under existing international law”. Saint Lucia was one of the 132 countries backing the Vanuatu‑led initiative, lending its voice to a groundbreaking appeal for climate justice.
Why does the opinion matter? The ICJ’s ruling affirms that climate change poses an urgent and existential threat, and that governments which continue to support fossil fuel production, licensing, or subsidies may be in violation of international law. It opens the door for states to be held legally responsible for climate-related harms, including potential obligations to provide financial or ecological reparations to affected countries and communities. Perhaps most significantly, the court reinforced that access to a clean and healthy environment is a fundamental human right, placing clear legal duties on states to regulate both public and private actors through rigorous due-diligence measures.
The landmark opinion has drawn reactions internationally and even locally. “I was quite elated… the recognition by the court that small island developing states are vulnerable and that they must be treated separately is a very important one. It also recognised that there’s a duty to prevent significant environmental harm,” explained Dr James Fletcher, who serves as the CARICOM Climate Envoy.
