World’s Youth for Climate Justice (WYCJ) led a years-long global campaign to take climate change and human rights to the International Court of Justice (ICJ) to get an advisory opinion (AO) – and with success! On 23 July 2025, the ICJ delivered a historic climate ruling outlining States' obligations under international law regarding climate change. The Court set out the applicable law governing States' duties to address climate change and the legal consequences of inaction.


One year later, as governments, courts, civil society, communities, and advocates begin translating the ICJ AO and other landmark climate rulings into action, one question remains: what comes next?

World’s Youth for Climate Justice is bringing law from paper to people, for communities and generations to come. Through strategic legal interventions and litigation, youth capacity-building & coordination, and legal and policy framework implementation, we are advancing the implementation of the historic climate ruling from the world’s highest court.

From ICJ AO to climate action

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Campaign News
Become the next Caribbean Front Lead!
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Become the next Caribbean Front Lead!
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Every Goal Matters in Humanity's Toughest Matchup
Opinion
Every Goal Matters in Humanity's Toughest Matchup
Opinion
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Opinion
Santa Marta: Where Climate Advisory Opinions Met Social Movements
Event
Santa Marta: Where Climate Advisory Opinions Met Social Movements
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The Court Has Spoken. So Has the Assembly. What’s Next?
Opinion
The Court Has Spoken. So Has the Assembly. What’s Next?
Opinion
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Opinion
UN experts welcome UN General Assembly resolution supporting world court’s climate change ruling
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UN experts welcome UN General Assembly resolution supporting world court’s climate change ruling
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Justice Michael D. Wilson shares statement supporting upcoming UNGA resolution welcoming ICJ AO
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Justice Michael D. Wilson shares statement supporting upcoming UNGA resolution welcoming ICJ AO
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Vanuatu's Draft Resolution to Implement ICJ Climate Advisory and India
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Vanuatu's Draft Resolution to Implement ICJ Climate Advisory and India
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UNGA Resolution Event with German Civil Society
Event
UNGA Resolution Event with German Civil Society
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Event
Caribbean Civil Society Mobilises for Fossil Fuel Phase-Out: Reflections from Saint Lucia
Event
Caribbean Civil Society Mobilises for Fossil Fuel Phase-Out: Reflections from Saint Lucia
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Event
Regional Symposium on Advisory Opinion to Action: Advancing Human Rights and Climate Justice
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Regional Symposium on Advisory Opinion to Action: Advancing Human Rights and Climate Justice
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Past and Future Strategies for the ICJ Advisory Opinion on Climate Change (Workshop)
Event
Past and Future Strategies for the ICJ Advisory Opinion on Climate Change (Workshop)
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ICJ Advisory Opinion on Climate Change: A Legal Perspective with Dr. Justin Sobion
Event
ICJ Advisory Opinion on Climate Change: A Legal Perspective with Dr. Justin Sobion
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Event
YUMI – The whole World Documentary
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YUMI – The whole World Documentary
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WYCJ Publishes a Briefing Note on the ICJAO and NDCs
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WYCJ Publishes a Briefing Note on the ICJAO and NDCs
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Reflections on the Palm Tree
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Reflections on the Palm Tree
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Youth-Led National Climate Justice Solidarity Event Celebrates ICJ Advisory Opinion on Climate Change and Human Rights
Event
Youth-Led National Climate Justice Solidarity Event Celebrates ICJ Advisory Opinion on Climate Change and Human Rights
Event
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Event
Rewatch the Mobilization Session: ICJAO - People’s Case for Climate Justice
Event
Rewatch the Mobilization Session: ICJAO - People’s Case for Climate Justice
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Event
Start A Watch Party: Follow the ICJAO Delivery Live
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Start A Watch Party: Follow the ICJAO Delivery Live
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WYCJ at UNOC3
Event
WYCJ at UNOC3
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Event
Bangladesh’s Dialogue on the ICJ Advisory Opinion: Strengthening National Climate Responsibility
Bangladesh’s Dialogue on the ICJ Advisory Opinion: Strengthening National Climate Responsibility
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UNOC Virtual Side: “Intergenerational Equity in Ocean Governance: Securing the Rights of Future Generations” Event Blog
Event
UNOC Virtual Side: “Intergenerational Equity in Ocean Governance: Securing the Rights of Future Generations” Event Blog
Event
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Event
What’s Next for Climate Justice in Bhutan?
Event
What’s Next for Climate Justice in Bhutan?
Event
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Event
Bangladesh's National Debrief on the ICJ Advisory Opinion
Event
Bangladesh's National Debrief on the ICJ Advisory Opinion
Event
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Event
WYCJ at ChangeNOW 2025
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WYCJ at ChangeNOW 2025
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Event
World’s Youth for Climate Justice Backs Historic African Advisory Opinion Request on Climate Justice
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World’s Youth for Climate Justice Backs Historic African Advisory Opinion Request on Climate Justice
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News
Why Climate Action Must Start With Our Youngest: My Experience at the ECD and Climate Change Workshop
Event
Why Climate Action Must Start With Our Youngest: My Experience at the ECD and Climate Change Workshop
Event
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Event
Collective Reflections from LCOY Nepal 2024 of WYCJ Members 
Event
Collective Reflections from LCOY Nepal 2024 of WYCJ Members 
Event
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Event
From the Streets to a Court of Our Own
Event
From the Streets to a Court of Our Own
Event
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Event
Marking a Historic Moment - Opening Ceremony for the ICJAO oral hearings
Event
Marking a Historic Moment - Opening Ceremony for the ICJAO oral hearings
Event
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Event
Traditional Hui: Indigenous Laws and Traditional Knowledge – Pathways to Climate Justice
Event
Traditional Hui: Indigenous Laws and Traditional Knowledge – Pathways to Climate Justice
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