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Guided by the values and expertise of medicine and public health, Physicians for Social Responsibility works to protect humanity from the gravest threats to health and survival. Right now, you can make a difference by registering your comments on the EPA's new Clean Power rule to limit carbon from existing coal-burning power plants. Just click the button to get started.

Consequences of a Single Failure of Nuclear Deterrence

PSR Senior Scientist Steven Starr, February 2011

Only a single failure of nuclear deterrence is required to start a nuclear war, and the consequences of such a failure would be profound. Peer-reviewed studies predict that less than 1% of the nuclear weapons now deployed in the arsenals of the Nuclear Weapon States, if detonated in urban areas, would immediately kill tens of millions of people, and cause long-term, catastrophic disruptions of the global climate and massive destruction of Earth’s protective ozone layer.

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  • July 17, 2014
    Our Best Opportunity to Cut Climate Change
    We need you to take action now! Tell the EPA that its proposed rule to cut carbon pollution from power plants Is vitally important and on the right track – but can be strengthened.