The Doomsday Clock is an internationally recognized design that conveys how close we are to destroying our civilization with dangerous technologies of our own making. First and foremost among these are nuclear weapons, but the dangers include climate-changing technologies, emerging... Read More
From the time we learn to walk, mistakes are inherent in the process of human learning. An essential design principle for technology should be that we, the generations that benefit, should bear the major costs of its mistakes. Nuclear power fails this simple test miserably.
It appears that the managers of the Fukushima Daiichi nuclear power plant, taken by surprise, did not know exactly what to do after a massive earthquake and tsunami struck the plant on March 11. Experts in the United States, thousands of miles away, had a duty to provide timely, helpful advice. Both the press and US officials failed. In particular, the US Nuclear Regulatory Commission's recommendation to stay at least 50 miles away from Fukushima was inappropriate and may have caused unnecessary panic.
Every evening, my father climbs the levee along the Missouri River in Council Bluffs, Iowa, and peers down into the black water that swallows the road. The water is rising, and the Army Corps of Engineers says the levee has never faced such a test. Dad, a retired professor, is packing his books and papers. If the levee doesn't hold, his one-story house could be underwater for months.
The situation at the Fukushima Daiichi nuclear plant has been an ongoing disaster since the March 11 earthquake and tsunami. According to an estimate by the Federation of Electric Power Companies of Japan, by April 27 approximately 55 percent of the fuel in reactor unit 1 had melted, along with 35 percent of the fuel in unit 2, and 30 percent of the fuel in unit 3; and overheated spent fuels in the storage pools of units 3 and 4 probably were also damaged.
On March 11, 2011, I was in a lunch meeting in Washington, DC, when I learned that an earthquake and tsunami had struck the Fukushima Daiichi nuclear plant. Initially I was optimistic that the plant's operators would be able to handle the situation. But as the accident grew to a level 7 in seriousness over the following weeks, my thoughts turned to the only other comparable accident in history -- and its lasting effects on my life.
The risk-assessment method that engineers currently use to predict the probability of a severe nuclear accident is unreliable and creates a false sense of security.
The multiple and ongoing accidents at the Fukushima reactors come as a reminder of the hazards associated with nuclear power. As with the earlier severe accidents at Chernobyl and Three Mile Island, it will take a long time before the full extent of what happened at Fukushima becomes clear. Even now, though, Fukushima sheds light on the troublesome and important question of whether nuclear reactors can ever be operated safely.
Re-examining Japan's nuclear history could not only help the country come to terms with the Fukushima disaster, but help it find a future without the US nuclear influence that has shaped its past.
It is tragic that Japan, the most fiercely antinuclear country on the planet, with its Peace Constitution, three non-nuclear principles, and commitment to nuclear disarmament, is being hit with the most dangerous and prolonged nuclear crisis in the past quarter-century -- one whose damage might still exceed that of Chernobyl 25 years ago. But Japan's antinuclearism has always rested upon a Faustian bargain, marked by dependence on the United States, which has been the most unabashedly pro-nuclear country on the planet for the past 66 years.
In a rare accord reached on March 25, the European Union decided to conduct safety "stress tests" on all of its 143 nuclear reactors. Akin to earlier stress tests that evaluated whether major banks were robust enough to withstand adverse economic conditions in the aftermath of the global financial collapse, the nuclear safety stress tests will assess the ability of reactors to withstand events such as those that devastated Fukushima.
The nuclear safety "stress tests" planned for Europe should be expanded to include tests that evaluate the security of nuclear materials around the world.
A probabilistic approach to risk leaves us unprepared for "infrequent catastrophes." Nuclear plants require a "possibilistic" approach that allows us to design safeguards against the worst-case scenario.
We continue to populate our planet with technologies that have catastrophic potential. We have vulnerable concentrations of humans, economic power, and hazardous materials. The most fearful concentrations of hazardous materials are in nuclear power plants. A serious accident there could kill hundreds or even thousands of people, and contaminate large areas of land for as long as a century.
The crisis at Japan's Fukushima Daiichi nuclear power plant following the 9.0 earthquake and tsunami on March 11, has brought the past tragedies at Chernobyl and Three Mile Island into the spotlight again. To offer a more thorough understanding of Chernobyl, the Bulletin has compiled this reading list from its archives. Dating from 1945 to 1998 and 1998 to present, the Bulletin's archives are a valuable resource for those interested in additional materials.
On March 11, when the first foreshock struck, my colleague Jeffrey Lewis and I were having lunch with senior industry officials at Japan's controversial Rokkasho Reprocessing Plant. That facility both enriches uranium and reprocesses spent nuclear fuel to extract plutonium, two processes that can also be used to make nuclear weapons. We were in the country to tour its nuclear facilities -- an arrangement designed to show how far Japan was prepared to go to convince the international community that its facilities were only for peaceful purposes.
As a physicist, I have spent my life hoping that nuclear power could realize its potential. My teachers were scientists who had penetrated the nuclear world for the first time. They told those of us who were studying physics in the pre-1960s era that we could have all the fun they had had, as the domain of analysis moved down in scale from the nucleus to the hadrons and leptons of the sub-nuclear zoo. But, with that fun, came a second assignment: Our generation had to ensure there was no further use of nuclear weapons.
The nuclear crisis in Japan following the 9.0 earthquake and tsunami on March 11, has brought the past tragedies at Three Mile Island and Chernobyl into the spotlight again. To offer a more thorough understanding of Three Mile Island, the Bulletin has compiled this reading list from its archives. Dating from 1945 to 1998 and 1998 to present, the Bulletin's archives are a valuable resource for those interested in additional materials.
In considering the implications of Fukushima for the 2012 Seoul Nuclear Security Summit, many experts in the United States would probably argue that there are none -- their fundamental point being that it is a security summit, not a safety summit.
However, it is undeniable that Japan's nuclear disaster has sounded alarm bells around the world. The words "nuclear reactor," "radiation," and "safety" have new resonance. Fear is inescapable.