Dear friends,

This month we are announcing a new paper, “A Model for the Impacts of Nuclear War”, co-authored by Tony Barrett and myself. The paper presents a detailed and comprehensive accounting of the many ways that nuclear war can harm human beings and human society. It is a counterpart to the paper we announced last month, “A Model for the Probability of Nuclear War”.

The model has five main branches corresponding to the five main types of impacts of nuclear weapon detonations: thermal radiation, blast, ionizing …