Climate Change Transparency Project

Featured Posting

About the Exhibit

The Disappearing Data Chronology documents fundamental changes to the federal information landscape under the Trump administration, including major data losses and…

Mar 30, 2026

Previous Postings

The UNFCCC was signed at the 1992 ‘Earth Summit’ in Rio de Janeiro, Brazil

Trump’s Withdrawal from UN Climate Body Breaks Bipartisan Consensus on Multilateral Efforts

Jan 15, 2026

The Paris Climate Agreement at 10 Years

Dec 12, 2025

Disappearing Data, Part II: Distorted Science and Deregulation

Sep 30, 2025

Pollution rises from the stacks of a coal fired power plant on the Ohio River West of Cincinnati (Source: Robert S. Donovan, 2013)

EPA Refuses to Disclose Talking Points for Meeting with Fossil Fuel Advocates

Aug 4, 2025

Spying on Climate: Inside the Intelligence Community’s Environmental Legacy

Jun 30, 2025

The Climate Intelligence Assessment the Government Doesn’t Want You to See

Feb 28, 2025

Disappearing Data: Trump Administration Removes Climate Information from Government Websites

Disappearing Data:
Trump Administration Removing Climate Information from Government Websites

Feb 6, 2025

Broken Promises: The Camisea Pipeline Project at 20 Years

Nov 26, 2024

Illustration from a 1985 report by Lawrence Livermore National Laboratory scientist Michael MacCracken, showing smoke and soot lofted from nuclear detonations on day 1 and the passage of the smoke 5, 10, and 20 days later (See Document 13, “Global Atmospheric Effects of Nuclear War”)

Investigating the Climate Impacts of Nuclear War

Oct 30, 2024

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Featured Documents

State Department cable, “Climate Change: Outcomes from the Kyoto Conference,” December 19, 1997

White House memorandum for John Podesta from Climate Change Task Force Chairman Roger Ballentine, “Climate Change Priorities,” April 26, 2000

State Department cable, “Montreal Protocol on Substances that Deplete the Ozone Layer,” October 14, 1987

State Department cable, “National Security Exemption on Climate Change,” October 26, 1997

DNSA collection

(Digital National Security Archive Collection published by ProQuest)

The Diplomacy of Climate Change: U.S. Policy from the Montreal Protocol to the Paris Agreement, 1981-2015

Edited by Dr. Robert A. Wampler

More than 2,400 documents (totalling nearly 23,000 pages) fully cataloged and indexed

Convening of a COP session at the Kyoto climate change conference in late 1997. (Photo credit: UN image, Frank Leather)

The most comprehensive compilation of its kind on this critical topic. Covers 35 years of key developments and controversy in U.S. climate change policy, from Montreal to Kyoto to Paris. Features top-level White House, State Department, Treasury, and EPA documents, CIA analyses, and U.N. reports on the key negotiations.

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Project Directors

Current
Rachel Santarsiero first joined the Archive in March 2022 as a Herbert Scoville Jr. Peace Fellow. As the Archive’s Climate Change Transparency Project Director, she manages the upcoming Climate and Security DNSA collection. She also contributed to the Archive’s Iraq Documentation Project. She has an MS in International Development from Worcester Polytechnic Institute, and previously worked as a civil engineer on climate resiliency and adaptation projects.

Former
Dr. Robert A. Wampler (Emeritus) joined the Archive in 1993. In addition to the Climate Change Project (formerly the Environmental Diplomacy Project), he directed the project on U.S.-Japan and U.S.-Korean relations and developed on the United States and the Tibet issue since the 1970s, and the history of the Pentagon’s Office of Net Assessment. He has also contributed to Archive projects on NATO and Henry Kissinger. Dr. Wampler received his doctorate in History at Harvard University, where he worked with the late Ernest R. May, who was a member of the Archive’s Advisory Board.