The long-term effects of the April 1986 accident at the Chernobyl nuclear power plant in the Soviet Union extend far beyond that nation's borders. To be sure, radioactive materials spewed into the atmosphere at Chernobyl covered a wide swath across Europe and provoked a strong reaction from neighboring states. More important and potentially more long-lasting, Chernobyl caused the world to undertake a fundamental rethinking of its position on nuclear power and to consider whether the benefits continued to outweigh the risks.
In countries as different, in energy resources, economic circumstances, and political systems, as Austria, the Netherlands, the Philippines, Mexico, Brazil, and the United States, public opinion has been a powerful force behind the reconsideration of decisions already taken to build new nuclear power plants or to place in commission plants which are close to completion. Even in Eastern Europe, pressure from environmentalists has compelled governments to address publicly — albeit superficially — the benefits and risks of nuclear power.