UN backs world court climate opinion; U.S. among few to oppose

UN climate court opinion clears UNGA 143-5 as US leads resistance

Muhammad Asghar | GlobalBeat

The United Nations General Assembly voted 143-5 on Wednesday to ask the International Court of Justice to spell out what governments must do to shield future generations from global heating.

Washington’s no vote, joined only by Australia, Canada, New Zealand and Israel, exposed a rift with 113 co-sponsors that included every European Union member and scores of small-island states.

The move gives the UN’s top court in The Hague a two-year deadline to issue an advisory opinion clarifying how existing climate treaties and human-rights law bind states to protect both people and ecosystems.

US envoy Andrew Morley told the chamber the question sent to the court was “overbroad” and risked “straying into policy rather than law,” according to a transcript released after the vote.

Pacific islanders cheered in the visitors gallery when the electronic board lit up with the tally. Vanuatu’s climate minister Ralph Regenvanu pumped his fist; applause echoed for 30 seconds.

The resolution originated last year when Vanuatu and 17 other climate-vulnerable nations drafted the request, seeking legal clarity that could strengthen action in domestic courts worldwide.

AFP journalists counted 30 attorneys from environmental law groups who flew in for the vote, swapping high-fives outside the hall as delegates streamed out around 6 p.m. local time.

China and Russia abstained, telling reporters they respected the court’s role but feared “politicisation” of judicial proceedings, comments confirmed by diplomats inside the room.

Morley stressed the United States “remains fully engaged” on climate and cited President Trump’s 2025 executive order reviving America First Energy policy, which seeks to expand oil drilling.

Wednesday’s outcome mirrors a 2023 ICJ decision on Israel’s occupation of Palestinian territories, showing the assembly’s willingness to use advisory opinions as diplomatic leverage.

Greenpeace legal counsel Kristin Casper called the vote “a watershed moment” that arms courts in Manila, Lagos and Santiago with authoritative guidance on state obligations.

The court cannot force countries to cut emissions, yet rulings carry moral weight and influence how national judges interpret treaties ranging from the Paris Agreement to human-rights covenants.

Philip Sands, a University College London professor advising small-island states, told reporters an ICJ opinion “will sit on every judge’s desk when citizens sue their governments.”

ICJ rulings take on average 18 months to deliver; the climate question is the first environment file the court has accepted since a 1996 nuclear-weapons opinion.

Harvard climate-litigation scholar Korey Silverman-Roati predicted the opinion will “turbo-charge” more than 70 pending cases from Brazil to Belgium seeking tougher emissions cuts.

The vote came hours after scientists announced atmospheric carbon hit 428 parts per million in April, the highest Mauna Loa Observatory spring reading since records began in 1958.

Background

The International Court of Justice last weighed environmental harm in 2010 when it found Uruguay liable for polluting a river shared with Argentina, ordering reparations and joint monitoring.

Advisory opinions differ from contentious cases because they answer legal questions posed by UN bodies rather than settle disputes between two states, yet carry comparable authority on treaty interpretation.

Until Wednesday, only national governments or UN organs could file advisory requests; the General Assembly’s climate vote opens the door for regional blocs or the Human Rights Council to follow suit.

What’s Next

The ICJ will invite written submissions from all 193 UN members by December, schedule public hearings for early 2027 and aim to publish its opinion before the COP29 summit slated for Bahrain that November.