Building nuclear reactors may be unpalatable to some, but most opposition to nuclear power results from exaggerated fear of small doses of radiation from accidents at reactors or spent fuel storage facilities. This risk, which is small, must be compared to the risk from continued climate change. Severe heat waves in Europe in 2003 and 2010 and high-intensity hurricanes, combined, have already resulted in about 120,000 premature deaths. There is no credible scientific evidence that the accidents at Chernobyl and Fukushima will have caused remotely that many premature deaths. Had construction of reactors not been virtually stopped for the past 30 years, these climate-related deaths might not have occurred, because the unbuilt reactors would have offset a significant fraction of carbon dioxide emissions.