• Research
  • Strategic Europe
  • About
  • Experts
Carnegie Europe logoCarnegie lettermark logo
EUUkraine
  • Donate
{
  "authors": [
    "James M. Acton"
  ],
  "type": "legacyinthemedia",
  "centerAffiliationAll": "dc",
  "centers": [
    "Carnegie Endowment for International Peace"
  ],
  "collections": [],
  "englishNewsletterAll": "ctw",
  "nonEnglishNewsletterAll": "",
  "primaryCenter": "Carnegie Endowment for International Peace",
  "programAffiliation": "NPP",
  "programs": [
    "Nuclear Policy"
  ],
  "projects": [],
  "regions": [
    "East Asia",
    "Japan"
  ],
  "topics": [
    "Nuclear Policy",
    "Nuclear Energy"
  ]
}

Source: Getty

In The Media

Japan Crisis Not As Bad As Chernobyl

As Japanese authorities work to cool the nuclear reactors damaged by the earthquake and tsunami, it remains unclear how much radiation is being released into the environment.

Link Copied
By James M. Acton
Published on Mar 16, 2011

Source: NBC

As the crisis deepens at the Daiichi reactors in Fukushima, Japanese authorities are working to cool the reactors and limit the spread of radiation. The severity of the situation is both unclear and fluid, since measuring gauges at the Daiichi reactors are unreliable and radiation levels have fluctuated greatly on-site. Speaking on NBC’s Today Show, Carnegie’s James Acton describes the Fukushima reactor crisis as worse than Three Mile Island, though less disastrous than Chernobyl. During the Chernobyl catastrophe, Acton said, a significant fraction of the reactor core explosively spread into the environment. In Japan, the primary threat comes from the melting of the reactor core, exposing fuel rods to the atmosphere. The amount of radiation that will be released from such melting is unclear, Acton concluded.

About the Author

James M. Acton

Jessica T. Mathews Chair, Co-director, Nuclear Policy Program

Acton holds the Jessica T. Mathews Chair and is co-director of the Nuclear Policy Program at the Carnegie Endowment for International Peace.

    Recent Work

  • Other
    Unpacking Trump’s National Security Strategy
      • Cecily Brewer
      • +18

      James M. Acton, Saskia Brechenmacher, Cecily Brewer, …

  • Commentary
    Trump Has an Out on Nuclear Testing. He Should Take It.

      James M. Acton

James M. Acton
Jessica T. Mathews Chair, Co-director, Nuclear Policy Program
James M. Acton
Nuclear PolicyNuclear EnergyEast AsiaJapan

Carnegie does not take institutional positions on public policy issues; the views represented herein are those of the author(s) and do not necessarily reflect the views of Carnegie, its staff, or its trustees.

More Work from Carnegie Europe

  • Commentary
    Strategic Europe
    Taking the Pulse: Is France’s New Nuclear Doctrine Ambitious Enough?

    French President Emmanuel Macron has unveiled his country’s new nuclear doctrine. Are the changes he has made enough to reassure France’s European partners in the current geopolitical context?

      • Rym Momtaz

      Rym Momtaz, ed.

  • Trump United Nations multilateralism institutions 2236462680
    Article
    Resetting Cyber Relations with the United States

    For years, the United States anchored global cyber diplomacy. As Washington rethinks its leadership role, the launch of the UN’s Cyber Global Mechanism may test how allies adjust their engagement.

      • Christopher Painter

      Patryk Pawlak, Chris Painter

  • Commentary
    Strategic Europe
    Europe on Iran: Gone with the Wind

    Europe’s reaction to the war in Iran has been disunited and meek, a far cry from its previously leading role in diplomacy with Tehran. To avoid being condemned to the sidelines while escalation continues, Brussels needs to stand up for international law.

      Pierre Vimont

  • Commentary
    Strategic Europe
    Macron Makes France a Great Middle Power

    France has stopped clinging to notions of being a great power and is embracing the middle power moment. But Emmanuel Macron has his work cut out if he is to secure his country’s global standing before his term in office ends.

      • Rym Momtaz

      Rym Momtaz

  • Commentary
    Can Europe Trust the United States Again?

    In Donald Trump’s second term in office, the transatlantic relationship that helped define the postwar European project and global order appears broken. Is it time for Brussels to chart its own path?

      Nathalie Tocci, Jan Techau

Get more news and analysis from
Carnegie Europe
Carnegie Europe logo, white
Rue du Congrès, 151000 Brussels, Belgium
  • Research
  • Strategic Europe
  • About
  • Experts
  • Projects
  • Events
  • Contact
  • Careers
  • Privacy
  • For Media
  • Gender Equality Plan
Get more news and analysis from
Carnegie Europe
© 2026 Carnegie Endowment for International Peace. All rights reserved.