Research and Writing

"Assessing the Risks of Dual-Use Asteroid Deflection,” Founders Pledge (2024).

“Why the U.S.-China Crisis Hotline Doesn’t Work,” Bulletin of the Atomic Scientists (2024).

Theories of Change for Track II Diplomacy, Founders Pledge (2024).

“The U.S. and China Need an AI Incidents Hotline,” Lawfare (2024).

“Christian Ruhl on Preventing World War III, US-China Hotlines, and Ultraviolet Germicidal Light,” Future of Life Institute Podcast (2024).

“Christian Ruhl on why we’re entering a new nuclear age — and how to reduce the risks,” 80K After Hours Podcast (2024).

“Our Biosecurity and Pandemic Preparedness Strategy in a Nutshell,” Founders Pledge (2024).

Stephen Clare and Christian Ruhl, “A New Cold War Could End Civilization — without Turning Hot,” Centre for International Governance Innovation (2024).

Stephen Clare and Christian Ruhl, Great Power Competition and Transformative Technologies, Founders Pledge and Centre for International Governance Innovation (2024).

Rosie Bettle and Christian Ruhl, Germicidal Ultraviolet Light (GUV) and Disease Transmission Reduction, Founders Pledge (2024).

Global Catastrophic Biological Risks: A Guide for Philanthropists, Founders Pledge (2023).

Matthew Gentzel and Christian Ruhl, “It’s Time for a New Atomic Altruism,” Vox, (2023).

Global Catastrophic Nuclear Risk: A Guide for Philanthropists, Founders Pledge (2023).

“Philanthropy to the Right of Boom,” Founders Pledge (2023).

Call Me, Maybe? Hotlines and Global Catastrophic Risks, Founders Pledge (2023).

“How Policymakers Can Build a Better Doomsday Clock,” Lawfare (2022)

“How the Patient Philanthropy Fund and Global Catastrophic Risks Fund Work Together,” Founders Pledge (2022).

“Sixty years after the Cuban Missile Crisis, how to face a new era of global catastrophic risk,” Bulletin of the Atomic Scientists, (2022).

Haydn Belfield and Christian Ruhl, “Why Policymakers Should Beware Claims of New ‘Arms Races’,” Bulletin of the Atomic Scientists (2022). Rieser Award winner.

Christian Ruhl and Matt Lerner, A Guide to Forecasting at Founders Pledge, Founders Pledge (2022).

“Nuclear Confidence Building through Cyber Norms: A Backdoor to Cooperation,” On the Horizon Vol. 4: A Collection of Papers from the Next Generation of Nuclear Professionals (2022).

Autonomous Weapons Systems and Military AI Applications, Founders Pledge (2022).

Julia Ciocca, Michael C. Horowitz, Lauren Kahn, Christian Ruhl, “How the U.S. Government Can Learn to See the Future,” Lawfare (2021).

Christian Ruhl, John Gans, and Michael C. Horowitz, “Introduction: Emerging Challenges to Trans-Atlantic Nuclear Deterrence,” in Policy Roundtable: The Future of Trans-Atlantic Nuclear Deterrence, Texas National Security Review (2021).

Julia Ciocca, Rachel Hulvey, and Christian Ruhl, The New Space Age: Beyond Global Order, Perry World House (2021).

Breanna Moore, Jared Rosen, and Christian Ruhl, How to See the Future: Forecasting and Global Policy, Perry World House (2021).

Michael C. Horowitz, Julia Ciocca, Lauren Kahn, Christian Ruhl, Keeping Score: A New Approach to Geopolitical Forecasting, Perry World House (2021).

Wyatt Hoffman, Duncan B. Hollis, and Christian Ruhl“Cyber Norms Processes at a Crossroads,” Lawfare (2020).

Michael Horowitz, Lauren Kahn, and Christian Ruhl, “Introduction: Artificial Intelligence and International Security,” Policy Roundtable: Artificial Intelligence and International Security, Texas National Security Review (2020).

“Note to Nations: Stop Hacking Hospitals,” Foreign Policy (2020)

Christian Ruhl, Duncan B. Hollis, Wyatt Hoffman, and Tim Maurer, Cyberspace and Geopolitics: Assessing Global Cybersecurity Norm Processes at a Crossroads, Carnegie Endowment for International Peace (2020).

“‘It’s better to forget physics’: The Idea of the Tactical Nuclear Weapon in the Early Cold War,” Physics in Perspective (2020).

Various authors, Input to National Security Commission on Artificial Intelligence, University of Pennsylvania (2020).

“Why There Are No Nuclear Airplanes,” The Atlantic, (2019)