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    "James M. Acton"
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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.

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By James M. Acton
Published on Mar 16, 2011
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Nuclear Policy

The Nuclear Policy Program aims to reduce the risk of nuclear war. Our experts diagnose acute risks stemming from technical and geopolitical developments, generate pragmatic solutions, and use our global network to advance risk-reduction policies. Our work covers deterrence, disarmament, arms control, nonproliferation, and nuclear energy.

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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

  • Paper
    Nuclear Weapons and the Future of American Power

      James M. Acton, Ankit Panda

  • Commentary
    The Latest Iran Deal Ignores the Lessons of the Past

      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.

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