Theory of Change: The Promise of a Future Free from Nuclear Weapons

As part of our ongoing efforts in Nuclear Security, the Center for Complexity in collaboration with our partners the Nuclear Threat Initiative and NSquare, have been working on an audacious project to end the nuclear weapons century – Horizon 2045.

In August 2020, the consortium launched an ambitious, original phase of work designed to ground our long-term work in rigorous research and data. This first phase of work produced powerful insights into the past, present, and future, pointing us toward projects and interventions that can challenge deterrence theory and move us toward demonstrable impact. That culminated in our first release of the Horizon 2045 Theory of Change, in November 2021.