In 1952 , a few weeks prior to the Ivy Mike ( 10.4 megaton ) bomb test on Elugelab island , there were concerns that the aerosols lifted by the explosion might cool the Earth . Major Norair Lulejian , USAF , and astronomer Natarajan Visvanathan studied this possibility , reporting their findings in '' Effects of Superweapons Upon the Climate of the World '' , whose distribution was tightly controlled . This report is described in a 2013 report by the Defense Threat Reduction Agency as the initial study of the " nuclear winter " concept . It indicated no appreciable chance of explosion-induced climate change
Ivy Mike
Ivy Mike
Nuclear winter