Nuclear weapons continued to be tested in the Cold War , especially in the earlier stages of their development . The toll on the worst-affected populations and the growth since then in understanding about the critical threat to human health posed by radioactivity has also been a prohibitive complication associated with nuclear power . Though extreme care is practiced in that industry , the potential for disaster suggested by incidents such as those at Three Mile Island and Chernobyl pose a lingering specter of public mistrust . Worldwide publicity has been intense on those disasters . Widespread support for test ban treaties has ended almost all nuclear testing in the atmosphere
Three Mile Island
Three Mile Island accident
Pollution