The Nuclear Threat Initiative is a nonprofit organization that works to prevent global catastrophic risks from nuclear, radiological, chemical and biological weapons of mass destruction.


As of May 2022, NTI's biosecurity program has received over $20 million in grants from Open Philanthropy.[1] NTI is one of the four organizations recommended by Founders Pledge in their cause report on safeguarding the long-term future.[2]

Further reading

Rohlfing, Joan (2021) Beyond the precipice: a new nuclear paradigm for surviving the Anthropocene, Effective Altruism Global, October 30.

Wiblin, Robert & Keiran Harris (2022) Joan Rohlfing on how to avoid catastrophic nuclear blunders, 80,000 Hours, March 29.

Nuclear Threat Initiative. Official website.

Donate to NTI

biosecurity | global catastrophic biological risk | global catastrophic risk | Johns Hopkins Center for Health Security | nuclear warfareweapons of mass destruction

  1. ^

    Open Philanthropy (2021) Grants database, Open Philanthropy.

  2. ^

    Halstead, John (2019) Safeguarding the future cause area report, Founders Pledge, January (updated December 2020).