The meltdown at the Fukushima Daiichi revitalized the public debate over the value and safety of nuclear energy. Do Americans see a nuclear plant as a devastating accident waiting to happen -- or the solution to climate change? From the Roper Center for Public Opinion archives:
Early Polling on Nuclear Energy
Americans believed in the potential for atomic power from the first years after WWII. Forty-eight percent of the country in a 1945 NORC poll said they expected atomic power to be put to general everyday use by industry with ten years; 22 percent thought between 11 and 50 years, 26 percent just didn't know. Concerns about atomic power were focused on nuclear war, not waste or accidents, and these concerns were limited. In a 1957 Roper Commercial survey, 20 percent believed that nuclear power was almost sure to bring great benefits to mankind, 56 percent thought it could help us if we learn to use it wisely and only 14 percent were doubtful that it would be used wisely or certain it would not be.
A few years after Shippingport Atomic Power Station, the country's first nuclear power plant, was opened in 1958, the country's positivity was slightly more reserved In a 1964 Institute for International Social Research/Gallup poll, nearly half the country (45 percent) believed that the development of nuclear power would turn out to be a benefit to mankind, but 28 percent thought it would be a curse, 14 percent said both or neither, and 13 percent didn't know.
Still, the country had fairly positive views about nuclear power into the 1970s. In a 1976 Cambridge Reports/Research International poll, about half the country (48 percent) favored the construction of more nuclear power plants, while 31 percent opposed.
Three Mile Island
On March 28, 1979, a partial nuclear meltdown at the Three Mile Island reactor in Pennsylvania led to the evacuation of area residents and a renewed national debate about the safety of nuclear power. In the wake of the disaster, the public was split in their response to the event. While 42 percent in a Cambridge Reports/Research International poll said the accident made them less inclined to support the development of nuclear power as an energy source, an equal proportion said it did not affect their opinion. The public was more united in opposition to the idea of closing nuclear power plants in response. Only 23 percent said that all plants should be closed, 60 percent disagreed. This response was perhaps unsurprising in a year when, in poll after poll, the public named the energy crisis and fuel shortages second only to inflation and cost of living as the most important problem facing the country.
Seven years later, failures at the Chernobyl nuclear power plant in Ukraine resulted in the worst nuclear accident in history. For the first time, a majority (62 percent) opposed the building of more nuclear power plants in the U.S., a shift in public support that proved long-lasting.
Although most people did not want more nuclear power plants, a majority did not go so far as to advocate shutting down the currently operating plants. In an April 1986 Gordon Black/USA Today poll those who opposed building more plants were asked if U.S. nuclear power plants should continue to operate. Forty-seven percent said they should, while 45 percent said they should be shut down. A Cambridge Reports/ USCEA poll taken in November of that year captured the uneasy relationship Americans had with nuclear power at the time. When asked to think about all energy sources available for large-scale use, about half the country (52 percent) described nuclear as a "not good, but realistic choice." The rest were split evenly between those who thought it was a good choice (23 percent) or a bad one (23 percent).
A Growing Acceptance
By the early '90s, strong majorities also supported the use of nuclear energy as one of the ways to provide electricity in the United States. Though levels have varied substantially, support on this measure has been higher than opposition over the last decade.
Opposition to building new nuclear power plants also decreased. Questions in the 2000s found the country either fairly evenly split or strongly supportive, depending on question wording and year, with peak support of 70 percent in a 2010 poll.
In March 2011, a meltdown at the Fukushima Daiichi plant in Japan triggered by the tsunami that hit the country became the second-worst nuclear disaster in history. Thirty-eight percent in a Quinnipiac poll said the accident made them less likely to support the construction of new nuclear power plants in the U.S., 57 percent said it had no effect. Although support for the use of nuclear energy as a way to provide electricity in the U.S. did drop by September of 2011, those favoring nonetheless nearly doubled those opposed. Interestingly, a 2015 poll, four years after the disaster, shows the lowest levels of support in a decade.
Nuclear Energy and Global Warming
While the history of support and opposition to nuclear power has been largely defined by the series of accidents that have brought safety into question, nuclear energy's role in preventing air pollution and greenhouse gas emissions has also been important in decision-making around nuclear development. Nuclear energy supporters have long extolled the beneficial effects of replacing high-emissions energy sources like coal, but the public was not easily convinced. Large segments of the public in the late '70s and early '80s did not believe that nuclear power provided such benefits. By the '90s, slim majorities agreed that nuclear cut greenhouse gas emissions and air pollution. About a quarter disagreed, and the substantial remainder didn't know.
Polls over the last decade have shown that most Americans do not make strong associations between nuclear energy and climate change solutions. Furthermore, 44 percent believe that nuclear plants contribute a lot or some to global warming. If the public came to associate nuclear energy closely with preventing climate change, support for nuclear would likely increase -- at least, unless another accident were to bring another shift in public opinion.