Nuclear Issues

74 Items

Sequoyah Nuclear Power Plant near Chattanooga, Tennessee.

Photorush/Wikimedia Commons

Journal Article - Nature Energy

Increase in Frequency of Nuclear Power Outages Due to Changing Climate

| July 05, 2021

Climate-related changes have already affected operating conditions for different types of energy system, in particular power plants. With more than three decades of data on changing climate, we are now in a position to empirically assess the impact of climate change on power plant operations. Such empirical assessments can provide an additional measure of the resilience of power plants going forward. Here I analyse climate-linked outages in nuclear power plants over the past three decades. My assessment shows that the average frequency of climate-induced disruptions has dramatically increased from 0.2 outage per reactor-year in the 1990s to 1.5 in the past decade. Based on the projections for adopted climate scenarios, the average annual energy loss of the global nuclear fleet is estimated to range between 0.8% and 1.4% in the mid-term (2046–2065) and 1.4% and 2.4% in the long term (2081–2100).

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.

Book Chapter - Routledge

Nuclear Disarmament, Nuclear Energy, and Climate Change

| March 2019

Preventing nuclear war and avoiding catastrophic climate change are two of the most basic challenges facing human civilization in the twenty-first century. While these are separate issues, these challenges are linked in several ways, and both may be affected by the future of nuclear energy. For nuclear energy to provide any substantial part of the low-carbon energy needed in the second half of the twenty-first century would require dramatic growth. This chapter provides an overview of the constraints and risks of nuclear energy growth on that scale, and the necessary steps to address them. In particular, use of nuclear energy at that scale would place unprecedented demands on global systems for verification, control, and security for weapons-usable nuclear materials. Deep reductions in nuclear arms and their eventual prohibition will also require new approaches to managing the vast global stocks of weapons-usable nuclear materials. Politically, nuclear energy may not be able to grow on the scale required unless governments and publics are confident that it will not contribute to the spread of nuclear weapons, creating another link between climate mitigation and nuclear nonproliferation and disarmament.

Dave Johnson coal-fired power plant is silhouetted against the morning sun

AP/J. David Ake

Magazine Article - Fair Observer

Sacrificing Nature Is Not an Option

    Author:
  • Kourosh Ziabari
| Feb. 27, 2019

In this edition of "The Interview," Fair Observer talks to Professor John Holdren, former science adviser to President Barack Obama and director of the White House Office of Science and Technology Policy from 2009 to 2017 about the impacts of global warming on the United States and the government's strategies to combat climate change.

U.S. Secretary of Energy Ernest Moniz and Head of the Iranian Atomic Energy Organization Ali Akbar Salehi, left, meet at an hotel in Vienna, July 9, 2015

AP

Analysis & Opinions - Scientific American

How International Cooperation in Research Advances Both Science and Diplomacy

| Apr. 27, 2017

"The partial budget blueprint released by the White House recently will put U.S. leadership in science and technology at serious risk if Congress goes along. In addition to the obvious damage that would result from the proposed $5.8 billion cut at NIH, the $2 billion cut in applied energy R&D, the $900 million cut in DOE’s Office of Science, the abolition of ARPA-E, and the research cuts at NOAA and EPA, a less immediately obvious potential casualty would be U.S. scientific cooperation with a wide variety of other countries on a wide variety of topics."

President Barack Obama meets with members of this national security team and cybersecurity advisers.

AP

Analysis & Opinions - Stat

Why President Trump Needs to Finally Name a Science Advisor

| Apr. 05, 2017

"Every president stocks the White House with people who can advise him on the economy, national defense, and foreign relations. And nearly all presidents in modern times have understood that science and technology are so central to all of those top-tier issues — and practically every other issue on the nation’s agenda — that science and technology advice in the White House is no less essential."

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Analysis & Opinions - The Diplomat

With Growth of Coal Power Plants, Vietnam's Future Is Grim

| January 12, 2017

On January 12, 2017, the academic journal Environmental Science & Technology published a study by researchers from Harvard University, Greenpeace, and the University of Colorado Boulder titled “Burden of Disease from Rising Coal-Fired Power Plant Emissions in Southeast Asia.” Based on official data on the future installation of coal-fired power plants in Southeast Asia and atmospheric transport modelling, the research group presented a grim picture of regional air pollution due to emissions from these plants.

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.

Analysis & Opinions - Bulletin of the Atomic Scientists

The Experts on Nuclear Power and Climate Change

| December 17, 2015

"Chinese President Xi Jinping reaffirmed at the global climate change conference in Paris that China pledged to achieve peak carbon dioxide emissions by around 2030, and to get around 20 percent of its primary energy from non-fossil sources by 2030. In 2014, China’s non-fossil energy consumption accounted for 11.2 percent of total energy use—hydro power was 8 percent, nuclear power was about 1 percent, and non-hydro renewable energy was around 2 percent—which is very close to the target of 11.4 percent set for 2015. Still, coal supplied the majority (66 percent) of China's total energy consumption in 2014, and oil accounted for about 18 percent of the energy mix. Natural gas, at 5 percent, still accounted for a relatively small share. To double the share of non-fossil sources by 2030, what role can nuclear power play?"