The United Nations General Assembly backed the International Court of Justice's climate advisory opinion on May 20, adopting a resolution by 141 votes to eight, with 28 abstentions. Vanuatu and other sponsoring countries brought the measure forward after negotiations that included several proposed amendments. The United States voted against it alongside Belarus, Iran, Israel, Liberia, Russia, Saudi Arabia and Yemen.

The resolution calls on governments to prevent significant harm to the climate and environment, honour their Paris Agreement commitments and cooperate internationally. It also connects climate policy with protection of life, health and an adequate standard of living. Secretary-General Antonio Guterres welcomed the outcome and called for a fair transition from fossil fuels to renewable energy.

The vote followed the court's July 23, 2025 opinion on states' obligations concerning climate change. An advisory opinion is not itself a binding judgment between litigating countries, but it explains the international legal duties relevant to their conduct. The Assembly's action gives that interpretation broad political backing.

In considering reparation for climate damage, the court rejected both the argument that climate damage can never be traced to a state's conduct and the opposite assumption that causation should simply be presumed. It said a sufficiently direct connection between a wrongful act and an injury must be demonstrated in each case.

The opinion distinguishes two questions: whether human-caused climate change contributed to an event or trend, and how the resulting damage relates to a particular state or group of states. Scientific evidence can help establish the first; a specific claim still requires examination of the second. Several contributing causes do not automatically exempt a state from responsibility.

Depending on the breach and injury, the court identified cessation, guarantees against repetition and reparation through restitution, compensation or satisfaction as possible consequences. It did not identify countries entitled to particular payments or calculate compensation. The May 20 vote therefore supports a legal framework for accountability, rather than distributing an agreed damages fund.

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