Center for International Environmental Law

When Did Governments Know?

New CIEL report traces decades of government knowledge of climate change
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The Banks and Investors Financing Petrochemicals Worldwide

Banks pump over US$250 billion into petrochemicals despite growing industry risks. Discover the top global banks and investors locking in fossil fuels.
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A Turning Point for Climate Justice

The ICJ has spoken: States now have a binding legal duty to prevent climate harm and protect human rights. Explore the historic ruling, what it means for accountability, for people, and planet.
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Geoengineering: Climate’s Risky Bet

Geoengineering technologies seek to cool the Earth, overlooking climate change’s root causes, and introducing new risks
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Press

COP31: CIEL Experts Available for Comment and Analysis on UN Climate Talks

ANTALYA, Türkiye, November 2, 2026 — Experts from the Center for International Environmental Law (CIEL Switzerland and CIEL US)... Read More

Press

Global Treaty Advances Precautionary Regime on Marine Geoengineering

Civil society groups welcome the move and warn against rebranding ocean dumping as climate action LONDON, October 9, 2026... Read More

Press

Big Oil Asks U.S. Supreme Court for a Free Pass

WASHINGTON, October 5, 2026 — The U.S. Supreme Court opened its new term today with oral arguments in Suncor... Read More

Blog

No Climate Justice Without Peace, No Peace Without a Fossil Fuel Phase Out

Posted on November 3rd, 2026 By Camilla Pollera, Human Rights and Climate Change Campaigner at the Center for International...

Blog

COP31: Can Climate Multilateralism Deliver in a World of Crisis and Conflict?

Published on November 2nd, 2026 By the CIEL delegation at COP31: Erika Lennon, Senior Attorney and Nikki Reisch, Climate...

Blog

Carbon Credits Under Scrutiny: What a New UN Report Means for COP31

Posted on October 29, 2026 By Erika Lennon, Senior Attorney, Center for International Environmental Law (CIEL US). Carbon markets...

Publications

Briefing for UNFCCC COP31 on Environmental Human Rights Defenders (EHRDs)

Environmental human rights defenders (EHRDs) are essential to advancing climate justice, yet they continue to face intimidation, criminalization, and... Read More

Publications

The Right to a Clean, Healthy, and Sustainable Environment in the Legally Binding Instrument on the Human Rights of Older Persons

Climate change, biodiversity loss, and pollution are already undermining the human rights of older persons, threatening their health, safety,... Read More