Nuclear Notebook

Since 1987, the Bulletin of the Atomic Scientists has published the Nuclear Notebook, an authoritative accounting of world nuclear arsenals compiled by top experts from the Federation of American Scientists. Today, it is prepared by Hans M. Kristensen, Matt Korda, Eliana Johns, and Mackenzie Knight of FAS. Because of its importance to researchers, governments, and citizens around the world, the Nuclear Notebook is always free-to-access. Below are the most recent published reports.