United Nations

Delta Merner/UCS

November 26, 2025

Kyoto and the Stories We Still Need to Tell About Fossil Fuel Obstruction

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

Wagner Meier/Getty Images

November 18, 2025

Bad COP to Good COP: Blocking Fossil-Fueled Disinformation in Belém and Beyond

Kate Cell
Senior Climate Campaign Manager

Delta Merner/UCS

November 7, 2025

Reflections from the IPCC Plenary in Lima on the Road to COP30

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

Kick Big Polluters Out

November 7, 2025

Imagining a COP Free from Fossil Fuel Industry Influence

Kathy Mulvey
Accountability Campaign Director, Climate & Energy Program

Delta Merner/UCS

October 27, 2025

Inside the IPCC Meeting in Lima: Global Climate Science Still Matters

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

photo of the United Nations General Assembly in session; on either side of the dais where two people are seated are two large display boards showing the results of a vote, and between the boards is the seal of the UN

Michael M. Santiago/Getty Images

April 8, 2025

Neither Global Development nor Nuclear Disarmament Happen Unilaterally

Robert Rust
China Analyst

Delta Merner/UCSUSA

March 6, 2025

Delays and Disagreements: The IPCC’s Struggle to Stay on Course

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

Delta Merner/UCSUSA

February 27, 2025

Trump Blocked Federal Scientists from Attending Latest IPCC Meeting: What Now?

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

photo of the United Nations headquarters in New York City; in the background, the tower rises against a blue sky and, in the foreground, a row of various nations' flags flutter in the breeze

Doug Armand/Getty Images

October 29, 2024

Why the World Needs a New UN Study on the Effects of Nuclear War

Laura Grego
Research Director, Senior Scientist

Delegates to the 61st IPCC session convene in a huddle at the end of the afternoon plenary session.

Anastasia Rodopoulou/IISD/ENB

August 5, 2024

Inside the IPCC 61st Plenary Meeting: Debates and Decisions Shaping Climate Policy

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

The exterior of the building in Sofia, Bulgaria, where the UN IPCC talks are happening is lit up at night

Kristy Dahl/UCS

August 1, 2024

What Happens at Meetings of the Intergovernmental Panel on Climate Change?

Kristy Dahl
Former Staff

Attendees at the 61st Intergovernmental Panel on Climate Change watch a presentation.

Delta Merner/UCS

July 29, 2024

Reporting from Bulgaria on the Intergovernmental Panel on Climate Change

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

A cardboard sign held aloft at a protest reads CLIMATE JUSTICE NOW

Markus Spiske/Unsplash

February 29, 2024

Climate Change Accountability: How International Courts Can Drive Climate Action

Carly Phillips
Research Scientist

Delegates at the United Nation's opening session of the Intergovernmental Panel on Climate Change (IPCC) seventh assessment cycle watch a presentation.

L. Delta Merner/UCS

January 16, 2024

Why the IPCC 7th Assessment Matters

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

Participants at the 2023 NuclearBan Week Second Meeting of States Parties (2MSP)

ICAN/Darren Ornitz

December 13, 2023

The UN Nuclear Ban Treaty is Leading Resistance to Nuclear Autocracy

Robert Rust
China Analyst

US Fish and Wildlife Service

November 16, 2023

Science’s Role in Addressing Loss and Damage from Climate Change

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

Mika Baumeister/Unsplash

November 6, 2023

Climate Litigation and UN Climate Talks: An Important Symbiosis

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

G. Edward Johnson/CC by 4.0

October 4, 2023

Decolonization Is Critical for Puerto Rico to Achieve Representation in Climate Negotiations

Juan Declet-Barreto
Senior Social Scientist for Climate Vulnerability

Sanjali De Silva/UCS

March 29, 2023

What International Climate Justice Means for Sri Lanka

Sanjali De Silva
Former Contributor

L. Delta Merner

November 16, 2022

Don’t Believe the Lies: Five Facts to Consider as the UN’s COP27 Comes to a Close

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

L. Delta Merner

November 15, 2022

COP27 Global Methane Pledge Efforts Are Not Enough

Shaina Sadai
Former Hitz Fellow

L. Delta Merner

November 14, 2022

Report from COP27: The Fossil Fuel Industry Continues to Block the Path to Climate Justice

L. Delta Merner
Lead Scientist, Science Hub for Climate Litigation

December 16, 2015

How to Sound like an Expert on the Paris Climate Agreement

Jason Funk
Former contributor

September 27, 2013

UN General Assembly: Time for Leaders to Deliver Climate Ambition

Alden Meyer
Former Contributor