Climate Justice through International Courts and Tribunals: Advisory Opinions in the International Tribunal on the Law of the Sea (ITLOS), the Inter-American Court of Human Rights (IACtHR) and the International Court of Justice (ICJ)

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Climate change is the justice challenge of our century, and the increasingly serious impacts of climate change on human societies and ecosystems are raising important international legal challenges. States and stakeholders are appealing to international courts for clarity concerning their responsibilities in the global response to climate change, as well as their accountability for climaterelated loss and damage. Through advisory proceedings, these institutions are being asked to clarify the legal obligations of States in addressing climate change, including the prevention of ocean impacts, the protection of human rights, and in international law more broadly. The International Tribunal for the Law of the Sea (ITLOS), the Inter-American Court of Human Rights (IACtHR) and the International Court of Justice (ICJ) are at the forefront of such proceedings with the potential to reshape international climate law and governance. In this article, expert legal scholars highlight the significance of climate advisory proceedings in these tribunals, briefly underlining the legal reasoning of the ITLOS advisory opinion, its implications for international climate governance, and the questions and arguments before the IACtHR and the ICJ. The article explores, in the context of global efforts to implement the Paris Agreement under the United Nations Framework Convention on Climate Change (UNFCCC) and other climate litigation including in international courts and tribunals, the transformative potential of recent advisory opinions sought from the ITLOS, the IACtHR and the ICJ. In their responses to the pressing need for legal clarity in a world grappling with unprecedented climate challenges, the article suggests, courts are offered an historic opportunity to shape the contributions of international law to global sustainability, justice and the survival of life on Earth.