Showing posts with label Nuclear Power. Show all posts
Showing posts with label Nuclear Power. Show all posts

Friday, January 11, 2008

How Green is Nuclear Fission?

After hearing the news from the BBC and Germany’s DW-TV that the EU is strongly considering building fission-type nuclear power plants to lessen carbon dioxide emissions prompts everyone to ask: How green is nuclear fission?


By: Vanessa Uy


This is by far one of the most controversial proposals of the European Union: Evaluating the idea of increasing the number of fission-type nuclear power plants to meet the European Unions growing demand for energy while limiting the carbon dioxide produced by this activity. Even since commercial use of nuclear energy began in the 1950’s, scientists are already concerned that there comes a time in the future that carbon dioxide generated by burning fossil fuels can increase the green house effect causing global warming. The Chernobyl nuclear plant incident back in April 26, 1986 caused the cancellation of any proposed nuclear power plants due to safety concerns.

Commercial fission-type nuclear power plants have always been targeted by picketing and protesting environmentalists for all the good reasons; radioactive wastes. This is one of the inevitable by - product of generating electricity via nuclear power and they can stay dangerously radioactive for up to a million years. “Radwastes” need a safe storage space where they can’t cause any harm for that length of time. Also, fission-type nuclear power plants generate excess heat and this is usually released in nearby large bodies of water wreaking havoc on the local estuarine ecosystem.

Nuclear power plants have their obvious benefits ever since Al Gore’s “An Inconvenient Truth” spoke of the dangers of increasing carbon dioxide in the atmosphere via industrial processes causing global warming. Day by day, nuclear fission gained legitimacy because it doesn’t generate carbon dioxide once in full operation. A very attractive process despite concerns on safety, radioactive waste storage and the threat of terrorists and rogue states acquiring weapons grade material.

Another problem that the experts haven’t discussed or are reluctant to is that the mining and refining of uranium or other similar fissionable material is very energy intensive. I’d be amazed that there is a nuclear fuel refinery in existence that uses renewable energy like wind or solar (photo voltaic or thermal) to process pitchblende and similar ores into yellow cake concentrate to uranium slugs.

“What about breeder reactors?” They can continually generate their own fuel so radioactive wastes will not be a problem and the energy intensive refining of uranium would be minimized. But, and it’s a very big one: the problem with breeder reactors is that the waste that gets recycled back into fuel is plutonium which is very easy to use as a weapons grade material. The problems of terrorist groups and rogue states probably stymied the widespread use of breeder-type reactors. These breeder-type nuclear fission reactors can only be found in easily defended and secure sites and the ones found in the US, Japan and France are the only ones freely talked about in the press.

Breeder reactors are green and eco-friendly in its own way, but like the existentialist Jean-Paul Sartre implies in his philosophical views: “Hell is other people.” If you want to know more about the carbon cycle and view detailed diagrams check out “enviropedia.org.uk”.

The Inconvenience of Nuclear Power

Despite nuclear fission’s promise as a power source that doesn’t exacerbate our planet’s greenhouse effect, we need to take a step back and focus on safety issues.


By: Vanessa Uy


Of all the incidents that fuel the passions of anti-nuclear activists, there’s none greater than the incident at the Chernobyl nuclear power station of April 26, 1986 that changed the entire world’s views on nuclear energy. Unknown to most of the world, the incident at the GKSS Nuclear Research Center in September 12, 1986 serves as a reminder to all of us the issue of safety on the commercial applications of nuclear power. Located in the Elbmarch Region of Schleiswig-Holstein along the Elba River near Hamburg has been dubbed as “Germany’s Chernobyl” due to the increased incidence of childhood leukemia in that region 4 years after the September 12, 1986 incident. A nearby nuclear facility, Krümmel Nuclear Power Station was later ruled out as the source of the radioactive contamination in Schleiswig-Holstein.

The two nuclear facilities are somewhat convenient scapegoats as the main cause of the “leukemia clusters” but there are evidence supporting this. Back in the late evening hours of September 12, 1986 eyewitnesses saw an eerie looking fire coming from the GKSS Nuclear Research Center facility which was described to be changing colors from blue to green to yellow.

In 1991, the Leukemia Action Group was established and with the help of the local government of Schleiswig-Holstein and some benefactors raised 5 million euros in funds to investigate the extent of the radioactive contamination of the region. Soil samples were collected around the area then send to be analyzed in various European laboratories accredited with the IAEA (International Atomic Energy Agency). The soil samples show the presence of strange microscopic metallic beads that doesn’t occur naturally in the region. The readings of the soil for ionizing radiation were five times above normal levels. Household dust particles taken from low traffic parts of the house like attics were collected around the Schleiswig-Holstein region. After being analyzed, the presence of transuranic elements like plutonium and americium were detected.

Some government officials point the source of the contamination to the April 26, 1986 Chernobyl nuclear power plant incident. But the experts later concluded that the mysterious metallic beads found near the GKSS Nuclear Research Center are core fragments from a fission reactor and can only be found in the immediate vicinity of a serious nuclear accident since they are too heavy to be carried by the wind. To this day, suspicions of a cover up / conspiracy persists on the true extent of the accident.