441 Items

Dr. J. Robert Oppenheimer, creator of the atom bomb, is shown at his study at the Institute for Advanced Study, in Princeton, N.J., Dec. 15, 1957.

AP Photo/John Rooney, File

Analysis & Opinions - Belfer Center for Science and International Affairs, Harvard Kennedy School

Nuclear Insights from "Oppenheimer"

After viewing the movie OppenheimerMatthew Bunn, John P. Holdren, Mariana BudjerynMatthew J. Parent, Calder Walton, Sylvia Mishra, and Julie George offer their thoughts on its relevance to the world today. 

an alert from the Department of Homeland Security's Cybersecurity and Infrastructure Security Agency

AP/Jon Elswick

Journal Article - Foreign Affairs

The End of Cyber-Anarchy?

| January/February 2022

Joseph Nye argues that prudence results from the fear of creating unintended consequences in unpredictable systems and can develop into a norm of nonuse or limited use of certain weapons or a norm of limiting targets. Something like this happened with nuclear weapons when the superpowers came close to the brink of nuclear war in 1962, during the Cuban missile crisis. The Limited Test Ban Treaty followed a year later.

teaser image

Analysis & Opinions - Belfer Center for Science and International Affairs, Harvard Kennedy School

Center Experts Reflect on 75th Anniversary of Hiroshima Bombing

On August 6, 1945, the United States dropped an atomic bomb on Hiroshima, Japan, launching the nuclear age. On the 75th anniversary of that somber event, Belfer Center experts reflect on the event and its aftermath. 

Chernobyl welcome sign

Wikimedia CC/Jorge Franganillo

Journal Article - Futures

Accumulating Evidence Using Crowdsourcing and Machine Learning: A Living Bibliography about Existential Risk and Global Catastrophic Risk

    Authors:
  • Gorm E. Shackelford
  • Luke Kemp
  • Catherine Rhodes
  • Lalitha Sundaram
  • Seán S. ÓhÉigeartaigh
  • Simon Beard
  • Haydn Belfield
  • Shahar Avin
  • Dag Sørebø
  • Elliot M. Jones
  • John B. Hume
  • David Price
  • David Pyle
  • Daniel Hurt
  • Theodore Stone
  • Harry Watkins
  • Lydia Collas
  • Bryony C. Cade
  • Thomas Frederick Johnson
  • Zachary Freitas-Groff
  • David Denkenberger
  • Michael Levot
  • William J. Sutherland
| February 2020

The study of existential risk — the risk of human extinction or the collapse of human civilization — has only recently emerged as an integrated field of research, and yet an overwhelming volume of relevant research has already been published. To provide an evidence base for policy and risk analysis, this research should be systematically reviewed. In a systematic review, one of many time-consuming tasks is to read the titles and abstracts of research publications, to see if they meet the inclusion criteria. The authors show how this task can be shared between multiple people (using crowdsourcing) and partially automated (using machine learning), as methods of handling an overwhelming volume of research.

Discussion Paper - Managing the Atom Project, Belfer Center

The Three Overlapping Streams of India's Nuclear Power Programs

| April 15, 2016

As India’s civilian nuclear energy program expands with the assistance of international nuclear suppliers, it creates new potential pathways to the acquisition of fissile material that could be diverted for military purposes. A key question is whether and how India’s civilian and military nuclear facilities are separated. In this discussion paper from the Belfer Center’s Project on Managing the Atom, Kalman A. Robertson and John Carlson argue that India has not established a complete and verifiable separation of its civilian and military nuclear programs. The authors recommend steps for India to take under its safeguards agreement with the International Atomic Energy Agency to provide assurances to all states that components of its civilian program are not contributing to the growth of its nuclear arsenal. These steps include renouncing options that would facilitate the use of safeguarded items to produce unsafeguarded nuclear material, and placing the proliferation-sensitive components of its nuclear power industry under continuous safeguards.

Journal Article - Taylor and Francis Science & Global Security

China's Uranium Enrichment Complex

| October 23, 2015

New public information allows a fresh estimate of China's current and under-construction uranium enrichment capacity. This paper uses open source information and commercial satellite imagery to identify and offer estimates of the capacity of China's 10 operating enrichment facilities, located at 4 sites, using centrifuge technology most likely based on adapting Russian technology. The total currently operating civilian centrifuge enrichment capacity is estimated to be about 4.5 million separative work units/year (SWU/year), with additional capacity estimated to be about 2 million SWU/year under construction. Also China could have an enrichment capacity of around 0.6 million SWU/year for non-weapon military uses (i.e., naval fuel) or dual use. These estimates are much larger than previous public estimates of China's total enrichment capacity. Further expansion of enrichment capacity may be likely since China will require about 9 million SWU/year by 2020 to meet the enriched uranium fuel needs for its planned nuclear power reactor capacity of 58 gigawatts-electric (GWe) by 2020 under its policy of self-sufficiency in the supply of enrichment services.

Korea Wolsong Nuclear Power Plant

IAEA, Korea Wolsong NPP

Analysis & Opinions - The Diplomat

The Repercussions of South Korea’s Pro-Nuclear Energy Policy

| Oct. 08, 2015

"South Korea has been trying to develop its nuclear energy industry over half a century. Insufficient energy sources, increasing domestic energy consumption, and rising oil prices in the 1970s were significant drivers that turned South Korea into a nuclear energy producer. Today, the country runs 24 nuclear reactors in four nuclear power plant sites, the second highest number of reactors among Asian countries after Japan and fifth highest in the world. Despite the contribution of nuclear energy to the South Korean economy, however, the country is currently facing mounting domestic concerns over its pro-nuclear energy policy."

Report - Managing the Atom Project, Belfer Center

China's Uranium Enrichment Capacity: Rapid Expansion to Meet Commercial Needs

| August 20, 2015

Based on satellite imagery, Chinese publications, and discussions with Chinese experts, This report suggests that China has much more civilian enrichment capacity than previously thought, and even more is on the way. If these new estimates are correct, China has enough enrichment capacity to meet its nuclear power fuel requirements for the coming decade and beyond. Further, China will have excess enrichment capacity and will likely become a net exporter of commercial enrichment services.

Matthew Bunn Analyzes the Iran Nuclear Deal

AP Images

Analysis & Opinions

Matthew Bunn Analyzes the Iran Nuclear Deal

| July 16, 2015

A historic deal aimed at limiting Iran’s nuclear production capability in exchange for the lifting of economic sanctions has been reached in Vienna. The deal comes following almost two years of multi-lateral negotiations which intensified over the past several weeks. In this Q&A with Doug Gavel, Director of Media Relations for the Harvard Kennedy School, Matt Bunn was asked for his perspectives on the most significant elements of the deal, how this deal came together, and whether the deal goes far enough.