In 1977, Medvedev published "Hazards of Nuclear Power", which mentioned the Kyshtym nuclear disaster in passing. At the time, the disaster was essentially unknown, and his work was dismissed as baseless propaganda even by his Western colleagues. Medvedev responded by publishing "Soviet Science" in 1978, which assembled evidence from Soviet publications that taken together comprised conclusive evidence of the disaster's occurrence. He followed this with the book "The Nuclear Disaster in the Urals" in 1979, and a further critique "The Legacy of Chernobyl" (1990), which connected the two disasters as being a product of the same attitudes toward science and engineering in the USSR.