Topic: Edwin Lyman
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How to store nuclear waste? Panel slams US and urges new approach.
A presidential blue ribbon commission says the US government 'has not inspired confidence' and recommends that a new agency take over the search for storage sites for nuclear waste.
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NRC hearing raises questions about safety at nuclear plants
A hearing of the Nuclear Regulatory Commission (NRC) pointed to apparent weaknesses in the regulation of nuclear plants.
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Nuclear power safety: Latest on Japan crisis fuels new concern in US
Nuclear Regulatory Commission still insists that US nuclear plants with same design as Japan's stricken Fukushima Daiichi facility are safe. But watchdog groups cite failed venting system, which led to hydrogen explosions.
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Despite recent alerts, nuclear regulators give an 'all-safe'
At a hearing Thursday, the Nuclear Regulatory Commission said things are fine. But it also acknowledged it is double-checking key items to verify preparedness in the wake of Fukushima.
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Fukushima prepares for cold shutdown: Will it finally stabilize Unit 1?
At Fukushima Daiichi in Japan, nuclear reactor Unit 1 is being prepared for 'cold shutdown,' which requires flooding the reactor's containment structure with cold water to stop steam production.
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Japan expands Fukushima evacuation zone. Will residents ever return home?
Radiation 'hot spots' beyond the existing Fukushima evacuation zone spur Japanese officials to order more areas to be emptied. Residents are being given a month to leave.
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Nuclear update: Leak stopped. Why is Japan injecting nitrogen into reactor?
Workers plugged a leak of highly radioactive water into the ocean from Japan's Fukushima Daiichi nuclear power plant Wednesday, even as they tried to prevent another hydrogen explosion in reactor No. 1 by injecting nitrogen gas.
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Japan nuclear crisis: why the plume traveling to US poses little threat
Scientists point to several factors. On Thursday, the Japan nuclear crisis took a hopeful turn as engineers installed a cable to connect the Fukushima I nuclear power plant to the utility grid.
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Japan nuclear crisis eclipses Three Mile Island, nears 'Chernobyl league'
Fifty workers and fire hoses are all that remain at Japan's Fukushima I plant to cool three hot reactors and six pools containing spent fuel rods – perhaps for months to come.
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Radiation exposure: How big is the threat in Japan?
Radiation exposure: Adding to the monumental losses after a Japanese earthquake and tsunami, problems at four nuclear reactors have residents near and far concerned about radiation exposure.
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Japanese nuclear reactor update: Amid signs of progress, new problems
Scientists warn of risks from spent-fuel cooling pools and plutonium-rich, mixed-oxide fuel inside one nuclear reactor, even as the No. 1 and No. 3 reactors appear to be coming under control.
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Japan now assumes 'possibility of a meltdown' at troubled reactors
Japanese workers raced against the clock to pump seawater into two damaged nuclear reactors. It’s a last-ditch effort to cool them enough to avert the kind of core meltdowns that happened at Chernobyl and Three Mile Island.
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Japan nuclear plant in state of emergency, as cooling power runs low
A nuclear plant in Japan is said to declare a state of emergency, as backup power used to cool three reactors runs low. Help is on the way. 'It's a dicey situation,' says nuclear specialist in US.
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Nuclear power a viable competitor in US energy market, study finds
High costs of building nuclear power plants may put the industry at a disadvantage to fossil-fuel-burning energy producers, says a study from MIT. But reprocessing spent nuclear fuel, a controversial practice, won't be necessary, it finds.
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Why Iran's nuclear reactor may not be an immediate threat
Iran's Bushehr nuclear reactor is set to be loaded with fuel Saturday. Some hawks say bomb it now, but leading nuclear experts advocate a wait-and-see approach.
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Nuclear power: Obama team touts mini-nukes to fight global warming
Miniature, mass-produced nuclear power plants, along with other alternative energy sources, can help the US address global warming, says Energy Secretary Steven Chu. Critics see that plan as raising the risk of proliferation of nuclear materials.
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The nuclear waste problem: Where to put it?
Currently, the US has no permanent disposal site for nuclear waste. A new presidential commission is exploring ways to solve the problem of storing highly radioactive spent nuclear fuel.
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Homeless nuclear waste
Some 60,000 metric tons of radioactive waste is stored at nuclear power plants across the country, awaiting federal action that’s already a decade late.
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Nuclear waste dogs US energy policy
Yucca Mountain was supposed to be where the highly toxic material was sent. But Obama's energy budget leaves it out.
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Backyard reactors? Firms shrink the nukes.
New designs could power some remote areas by 2012.
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Will lasers brighten nuclear's future?
New process could replace centrifuges but renew threat of nuclear proliferation.
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