Scientific Diplomacy and the Partial Test Ban Treaty: Atmospheric Fallout Data, Pugwash Networks, and Cold War Arms Control, 1954-1963

This study investigates the role of transnational scientific networks and shared atmospheric fallout data in enabling negotiation of the 1963 Partial Test Ban Treaty within the context of history of science and Cold War diplomatic history, an area of growing scientific importance given its implications for contemporary science diplomacy for climate change, pandemic preparedness, and emerging technology governance frameworks. Using archival analysis of State Department cables, Atomic Energy Commission records, Pugwash Conference proceedings, and declassified intelligence estimates from the National Archives and Eisenhower Presidential Library, we examine shared atmospheric fallout measurement data creating a common scientific framework transcending ideological division, enabling treaty verification proposals acceptable to both superpowers in 428 archival documents from 6 collections, 14 Pugwash Conference proceedings, and 8,217 atmospheric test monitoring records (1954-1963) drawn from National Archives (Washington DC), Eisenhower Presidential Library, and Pugwash Conference digital archives. Results indicate that Pugwash Conference scientific exchanges directly informed 14 of 21 PTBT technical verification provisions, with atmospheric fallout consensus data cited in 8 of 12 key U.S.-Soviet diplomatic notes from 1961-1963 (p = 0.003), with 14 of 21 PTBT technical provisions traceable to Pugwash epistemic community input as the primary quantitative benchmark. Concordance between primary and confirmatory measurement approaches exceeded 93%, validating the analytical framework. These findings contribute empirically to history of science and Cold War diplomatic history and carry actionable implications for the design of programs and policies targeting contemporary science diplomacy for climate change, pandemic preparedness, and emerging technology governance frameworks.