Thank you very much for taking the time to read some of my blog posts! I hope to continue posting - all be it less frequently - in the future as the "nuclear future" becomes the "nuclear present"!
Any questions or queries about nuclear energy would be most welcome on this post.
Thursday, 7 January 2016
Tuesday, 5 January 2016
Nuclear Energy and Christianity
As a Catholic I thought it would be interesting to examine
the Christian ethical stance on nuclear energy and compare it to my own. From
initial scans of literature it is clear that I am not exactly aligned with the
general attitudes of the Church. The first explicit opposition to nuclear
energy was provided by Pope Francis in an audience with the Bishops of Japan.
He likened the human quest for nuclear energy to the Biblical story of the “Tower
of Babel”. This story saw humans exceeding their role within the natural restraints
– by attempting to build a tower directly to heaven. This project ended in their
own destruction – Pope Francis therefore feels humans are going beyond what we
are naturally here to achieve, meaning human destruction is potentially a
result (Buff 2015). This was in response to the Fukushima disaster, where
Japanese Bishops at the time demanded the state shutdown all reactors, due to
the risk of mortality. This statement was the first to oppose nuclear energy,
progressing from the previous stance that was explicitly in opposition to nuclear
weapons only (Buff 2015).
![]() |
| Illustration of the Tower of Babel - Humanity breaching the God-given natural laws. Image (Mallett 2008). |
The Christian stewardship ethic develops from Genesis, where
humans were given dominion over all life that shares the Earth with humanity (Christianto 2013). This stewardship ethic is not only a
product of maintaining the role provided by God, but also an ethic based
on the “New Creation”, the Earth that will be produced in harmony and equity
following the return of God (Butler 1979). Therefore not only does the ethic suggest
we must be stewards to all life now, but also in the future to ensure the Earth
is ready for the New Creation. This has obvious ties to nuclear energy – for
example the inter-generational concerns of nuclear waste providing future risks of
freshwater contamination, biodiversity pollution or human death, to name a few. However,
it could be argued that climate change provides similar threats. Therefore nuclear
energy may potentially be required to become a steward of life, as the loss of
life from climate change may exceed anything imaginable via nuclear energy.
Nuclear has the potential to destroy life (Butler 1979);
therefore in this sense it would be opposed by the Christian Stewardship ethic.
Taken to a basic level, the commandant “You shall not kill” may conflict with
the widespread implementation of nuclear energy (PCA 1987). If nuclear is
implemented with the knowledge that there is the potential to kill, with past
evidence displaying the threat to life, then it may be argued that nuclear is
treading a fine line with this vastly important commandment. When taking into account
the potential proliferation of nuclear material and waste for use in weapons
and terrorism then this more explicitly highlights the conflict and Christian
opposition (PCA 1987).
The stewardship ethic can expand into the economic side of
nuclear energy, with many developing nations often taking out exponential loans
to fund nuclear projects (Christianto 2013). The social detriment that vast
debts can provide are obvious, they include reduced education, health care and
other public services in order to repay the loans. This once again would
conflict with the Christian ethic of stewardship, not only does nuclear construction
place the people at greater risk, but it also can boost global inequality and
human suffering.
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| Pope Francis is not very happy about the potential detriment of nuclear... Image (Sdcharg Blog Account 2015). |
Therefore it is suggested that Christians should push for
other renewable options (Christianto 2013), such as wind, solar and hydro. This
is perhaps ignorant to the risks and damages that these often “romanticised”
options can provide. I acknowledge the risks at hand, yet I have to go against the
Church by continuing to support the nuclear potential. If the view point is
driven by stewardship to all life and inter-generational equality – then climate
change must surely be acknowledged as a greater threat to this ethical stance.
If nuclear can be influential in the fight against climate change and the biodiversity
damage it causes, then it should be promoted as a suitable energy option!
Saturday, 2 January 2016
Poll Results and Generation IV Reactors
The purpose of my poll was to attempt to gauge the common feeling about nuclear energy and its potential. Responses to the poll have occurred over time and therefore whether they are a priori deductions or based on the evidence from my posts is relatively unknown.
The vast majority see nuclear energy as playing a large role in the future energy sector - with many agreeing with me in that nuclear has to be used if climate change mitigation is going to become a reality. Those that viewed nuclear as a risk may experience some of the points made in past posts about public perception - the over exaggerated fear within a risk society (Beck 1992) or the enhanced opposition based on images of nuclear war and power plant disasters.
I initially believed many more would oppose nuclear energy. I was personally unsure on my stance to begin with also, however as the blog has developed over the weeks I have definitely shifted towards a pro-nuclear position - it simply can not be disregarded!
A greater shift towards positivity may emerge in the coming years with the transition from Generation III to Generation IV nuclear reactors (Horvath 2016). This is the product of The Generation IV International Forum, deciding upon 6 new nuclear technologies that will progress in the 21st Century - one being the Molten Salt Reactor mentioned in a past post (WNA 2015a). Three of the technologies will be "fast reactors" (WNA 2015a), meaning they use the fast neutrons from Uranium-238 as well as the U-235 isotope (WNA 2015b). It is hoped that wide-scale application of these technologies will emerge 2020-2030. The intent is to close the cycles of nuclear reactors, providing greater levels of recycling and consequently greater energy production efficiency and reduced waste creation (Horvath 2016).
It is believed that these new technologies will enable the life-time of nuclear waste to be reduced to hundreds of years, rather than the hundreds of thousands of years associated with conventional reactors (Horvath 2016). The fast reactors are capable of burning the actinides, which are the components of the high level waste that have exponential life-times (WNA 2015b).The waste produced following the reprocessing of spent fuel has a lower heat capacity than the spent fuel itself - therefore this means that when the waste is stored, for example in a deep, geological store, it can be done so at a greater density. This therefore means less space is required - which can prolong the global, burial potential - as well as limiting the level of proximate exposure to human settlements.
Not only do these new technologies provide sustainable, efficient energy production - but also there is the belief that they will increase the cost-efficiency via closed cycle reprocessing - as well as providing more resistant waste material against the potential proliferation for weapon construction (Horvath 2016).
Nuclear is not the same as it was when Chernobyl threatened global safety and security - progressions have been made and will continue to be made in the future. New technologies are emerging that reduce waste and improve security and awareness, with increased international checks and standards to abide to. I argue that many who oppose nuclear still have, what is now arguably an "archaic" image of nuclear. The majority showed similar viewpoints to me, supporting the potential for nuclear. This is potentially a product of the readership, with it suggested that increased support emerges from a more educated audience (OECD 2010).
The vast majority see nuclear energy as playing a large role in the future energy sector - with many agreeing with me in that nuclear has to be used if climate change mitigation is going to become a reality. Those that viewed nuclear as a risk may experience some of the points made in past posts about public perception - the over exaggerated fear within a risk society (Beck 1992) or the enhanced opposition based on images of nuclear war and power plant disasters.
I initially believed many more would oppose nuclear energy. I was personally unsure on my stance to begin with also, however as the blog has developed over the weeks I have definitely shifted towards a pro-nuclear position - it simply can not be disregarded!
A greater shift towards positivity may emerge in the coming years with the transition from Generation III to Generation IV nuclear reactors (Horvath 2016). This is the product of The Generation IV International Forum, deciding upon 6 new nuclear technologies that will progress in the 21st Century - one being the Molten Salt Reactor mentioned in a past post (WNA 2015a). Three of the technologies will be "fast reactors" (WNA 2015a), meaning they use the fast neutrons from Uranium-238 as well as the U-235 isotope (WNA 2015b). It is hoped that wide-scale application of these technologies will emerge 2020-2030. The intent is to close the cycles of nuclear reactors, providing greater levels of recycling and consequently greater energy production efficiency and reduced waste creation (Horvath 2016).
It is believed that these new technologies will enable the life-time of nuclear waste to be reduced to hundreds of years, rather than the hundreds of thousands of years associated with conventional reactors (Horvath 2016). The fast reactors are capable of burning the actinides, which are the components of the high level waste that have exponential life-times (WNA 2015b).The waste produced following the reprocessing of spent fuel has a lower heat capacity than the spent fuel itself - therefore this means that when the waste is stored, for example in a deep, geological store, it can be done so at a greater density. This therefore means less space is required - which can prolong the global, burial potential - as well as limiting the level of proximate exposure to human settlements.
Not only do these new technologies provide sustainable, efficient energy production - but also there is the belief that they will increase the cost-efficiency via closed cycle reprocessing - as well as providing more resistant waste material against the potential proliferation for weapon construction (Horvath 2016).
Nuclear is not the same as it was when Chernobyl threatened global safety and security - progressions have been made and will continue to be made in the future. New technologies are emerging that reduce waste and improve security and awareness, with increased international checks and standards to abide to. I argue that many who oppose nuclear still have, what is now arguably an "archaic" image of nuclear. The majority showed similar viewpoints to me, supporting the potential for nuclear. This is potentially a product of the readership, with it suggested that increased support emerges from a more educated audience (OECD 2010).
Wednesday, 23 December 2015
Nuclear and Freshwater - Part 2
Despite the comparably high freshwater use in the cooling
process of nuclear energy production it must be noted that power plants, according
to the US Geological Survey return 98% of the water that they initially
withdraw (NEI 2013). Only 1-2% is actually consumed which is relatively efficient
when put in comparison to irrigation, which withdrawals more water than the
energy sector and only returns around 20% of this to the hydrological cycle
(NEI 2013). Further contextualisation shows nuclear “once-through” cooling to
consume 13 gallons/day/household, if a power plant is taken to provide for the average
740,000 homes. This contrasts to the average 94 gallons/day/household consumed
by an average 3 person household in the US (NEI 2013). Therefore in the face of
a water security issue, it is arguably household consumption that needs to be
prioritised over the energy sector!
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| Irrigation is by far the largest freshwater-consuming sector (NEI 2013). Image Source (National Geographic 2015). |
The cooling water requirements are currently higher in
nuclear than fossil fuels, as mentioned in the previous post, due to the variable
operating temperatures of the procedures (Brook 2014). However, this disparity
may not be a long-term issue with new nuclear power plants, using the “liquid-metal-cooled-fast
reactor, operating at a similar temperature to fossil fuel energy generation and
therefore the difference is going to be gradually diminished (Brook 2014). The
power plants only consume negligible amounts of water; much of it is heated and
then returned to the origin as clean water. Within cooling towers the water is
evaporated and returned to the natural cycle as clean water vapour (Brook 2014). Therefore in terms of the process as a whole, nuclear can be viewed as a
relatively efficient water sector. This only contains the consumption within the
actual generator, therefore perhaps underestimating the full use within the
nuclear sector – for example water requirements will be required during mining
and transportation also. Therefore it is important to broaden the view,
to ensure that the full process chain is accounted for in regards to nuclear
energy efficiency.
Nuclear does not necessarily remove freshwater; there is the
potential for freshwater improvements. For example in some power plants the cooling
towers use urban waste water that is first cleaned, then evaporated back into the
environment (Brook 2014). Therefore the energy generation is not using any
water that could have been put to any other use, increasing freshwater
availability.
Furthermore, nuclear has a large role in desalination with
recent nuclear generators constricted in Argentina, China and South Korea that
have dual benefits of electricity production and freshwater generation (NEI 2015). Many of the desalination technologies currently use fossil fuels which
therefore can increase global warming and place freshwater security at a
greater threat. Many countries are already highly dependent on desalination,
for example around 40% of Israel’s freshwater comes via desalination processes
(WNA 2015). In many areas the need for water resources for consumption and
agricultural is high, yet supply is low. Oman for example opened a nuclear desalination
plant in 2011, with the eventual capacity desired to be 220,000m3/day
freshwater production (WNA 2015). The quality produced will therefore enable
agricultural and domestic use, whilst also allowing aquifers to be recharged with
potable water to facilitate the regeneration of long-term freshwater stores.
Types
of desalination process (OECD N/A):
![]() |
| The Al Ansab submerged membrane bioreactor desalination plant, Oman (ACWA 2012). |
- Multi-stage Flash distillation Plant – water vapour is generated by heating the seawater close to boiling point. Then it is passed through gradually reducing pressures to provide flash evaporation. The vapour is then condensed as a freshwater.
- Multi-effect distillation Plant – Vapour generated by external heat appliance. Again lower pressures promote further evaporation. The vapour produced from one heating is used to provide the heat for the next evaporation process. Forming a chain reaction.
- Reverse Osmosis – seawater is passed through a high pressure system with semi-permeable surfaces. This rejects brine and produces pure water.
The
latter requires less energy, costs and water input, suggesting it may be the
more efficient process to use.
![]() |
| Costs per m3 production of desalinated freshwater. Lowest costs seen within nuclear reverse osmosis (OECD N/A). |
The
UK Environmental Agency suggests that all future nuclear plants should be built
on the coast to enable the greatest supply for reactor cooling as well as enabling
large scale desalination projects (NEI 2013). This is perfect in the UK,
however as seen in Fukushima coastal positioning generates large risk within active
seismic areas – meaning the UK policy is unlikely to be replicated on a global
scale.
Nuclear
energy therefore is not a sector that should be targeted in regards to
freshwater security issues. Withdrawal and consumption are comparably low to
other sectors. However it must be examined as a potential source of
improvement. Desalination through fossil fuels is simply adding to the problem,
nuclear desalination can provide additional freshwater in the short-term and
reduce global warming and the consequent freshwater reduction in the long-term
also!
Tuesday, 22 December 2015
Nuclear and Freshwater - Part 1
Energy and freshwater security are interdependent and
therefore pressures on one will tend to transfer to the other also (Holland 2015).
Nuclear energy can be viewed as detrimental to freshwater security,
for example in 2008 it was realised that nuclear power plants used more water
per unit electricity than other forms of power plant (UCSUSA 2015). The water
use varies depending on the cooling method used, the “once-through” technique uses
400 gallons/MWh, whereas if cooling towers are implemented then the consumption
increases to 720 gallons/MWh. In comparison to other forms of energy
generation, this is rather high:
- Coal ranging from 300-714 gallons/MWh.
- Natural gas ranging from 100-370 gallons/MWh (NEI 2013).
- Hydropower consumption 4,500 gallons/MWh.
- Geothermal and solar consume 2 to 4x more water than nuclear power plants (NEI 2013).
![]() |
| Cooling towers in Nottinghamshire, UK (Carroll 2012). |
The interdependence is highlighted by the 15% loss of French
nuclear energy generation in 2003 as a result of a severe drought (Hightower 2008). Similar difficulties were found in Eastern Australia following the large
drought of 2007. With the increased threat of freshwater security the energy
sector will have to compete with other sectors – predominantly agriculture – for the dwindling resources (Hightower 2008). Therefore whether
there is sufficient water available to provide for the nuclear future is a
question that needs to be answered.
As seen from previous posts, nuclear disasters or waste
leakage can detriment the quality of the freshwater resources. For
example in SE Washington State there were wide reports of groundwater (GW) contamination
(Hanson 2000). Liquid wastes were discharged directly into the ground in the
mid-20th century, as well as waste leakage from the underground pipe
system (Hanson 2000). The risk of GW contamination reduces the amount of
resource available for use. This will be of particular concern within semi-arid
and arid environments where GW resources are gaining increasing importance as surface stores reduce with increasingly prolonged droughts.
Evidence of contamination was found in northern and western
areas of the Fukushima nuclear plant in Japan (Mizuno 2013). Freshwater organisms such as the Ayu fish were contaminated. High caesium
content was detected in areas up to 40km away from the plant. This spread is
produced by the high density Japanese freshwater system with multiple irrigation
canals, paddy fields and urban waterways. Therefore enabling the contamination of
the water to spread large areas, bringing ecological and human health issues
and impacting agricultural efficiency (Mizuno 2013).
However, these negatives do not tell the whole story! Absolute consumption may not be as great as quoted
here in reality, with many benefits coming from the nuclear sector also. These will be
detailed in the following post!
Thursday, 17 December 2015
Waste Cartoon
![]() |
| Source (Hancock 2013).
The above refers to the longevity of the nuclear waste problem. Perhaps the cartoon underestimates the prolonged threat it can provide, the issue is going to continue past one generational shift! However, it does stimulate thought in regards to the ethics behind nuclear waste - can we dispose of it in deep geological structures, placing it out of sight and out of mind - if future generations will be impacted by the potential escape of radioactive material over time. Contrasting viewpoints point to different radioactive lifespans - much opposition, including Greenpeace, use the half life (millions of years) of radionuclides to emphasise their anti-nuclear stance. However other evidence would suggest that after 1,000 years the waste would have decayed to a similar level as natural uranium (WNA 2015).
There is no doubt the waste concern will bypass the lives of multiple generations - whether this is moral or not is a big question. It may be argued that leaving the waste for future generations is positive, as if the current technological advancement trends continue then a future society may be in a better position to overcome this challenge than the position we are currently in. Advancements have already begun, for example the vitrification process (UOS 2013) and fuel reprocessing.
Please view my posts on nuclear waste (Parts 1 and 2), for more information and references to other material.
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Tuesday, 15 December 2015
Costs Cartoon
![]() |
| Source: (Energy Collective 2012). |
With greater economic stress applied by rising fossil fuel costs, the ever increasing stigma attached to carbon combustion and the restrictions agreed upon at COP 21 - previous reservations of nuclear energy may be reversed. This cartoon may symbolise the future of German energy - realising that the closure of multiple plants may limit long-term economic and environmental viability!
Thursday, 10 December 2015
Nuclear at COP 21 - Part 2
One very exciting prospect for nuclear that has been
introduced at COP 21 is the Breakthrough Energy Coalition, announced by
Bill Gates. The main objective of this scheme is to use the economic capacity and
power of the world’s billionaires (including Richard Branson and Mark
Zuckerberg) (Milman 2015) to fast-track the globe to a clean-energy era (Casey2015). The coalition sees nuclear at the forefront of this clean energy push,
which will likely conflict with many who do not view nuclear as a “clean”
option!
Founders Richard Branson (left) and Mark Zuckerberg (right) and co-chair Bill Gates (centre) of the Breakthrough Energy Coalition (BEC 2015).
The need for this push is because current investment is not sufficient,
with subsidies and governmental supports not in a position to stimulate mass
private risks in regards to investing in nuclear, and other clean energy, technologies and research. Therefore the billionaires can overcome this initial
risk and also stimulate the mobilization of further investment. Bill Gates views solar and wind energy as great options, yet
agrees with the viewpoint I have reiterated multiple times – the magnitude of
the climate issue means all pathways have to be explored – with new and
innovative energy production schemes required to remove humanity from its
continued fossil fuel dependency.
Profit remains the primary objective (Casey 2015), which
leads me to question the extent in which they will go to in order to truly
establish this era of clean energy. If a loss if required to combat climate
change, would they have the drive to make such a move? (It is not like they are
short of profit?!). The profit is hoped to be obtained directly from returns in
investments as well as indirectly as their initial investment will enable the market
they function within to enhance, creating more custom for their research and
innovations.
Gunter (2015) argues that innovation is not needed; we have
already made the break-through with wind, solar etc. Therefore the fund
available could be put to use practically in expanding the innovations already
made, rather than driving for new innovations. I feel this is a rather restricted-view,
yes renewables need to be expanded – but surely attempting to innovate and
create more effective clean energy sources, whether it be nuclear or not should
not be opposed?!
Listen to Bill Gates explain the basic concept of the
Breakthrough Energy Coalition below:
Tuesday, 8 December 2015
Nuclear at COP 21 - Part 1
Nuclear energy has been relatively subdued within the COP 21 conference in Paris (Hyams 2015). With the majority of draft
documents not mentioning nuclear as a solution to climate change (Jouette 2015). The focus has been
mainly on the traditional renewables of solar, wind etc. – however arguably
nuclear has to be integrated into discussions and decisions if the carbon
reduction objectives are going to be fulfilled. A short interview with Jean-Pol
Poncelet during COP 21, who is the General Secretary for the pro-nuclear, European Nuclear
Society – can be listened to here. He
highlights the dependency Europe in particular already has on nuclear, in particular within France. The
low-carbon procedure in preparing the fuel is partnered with the 0 emission
energy production, therefore if the 2C increase boundary is going to be
prevented then the nuclear potential must be considered strongly! Other low-emission sources are not disregarded, with nuclear being suggested as a necessary component of the overall mix. Perhaps nuclear can be used as a stop-gap for other renewables to develop further, this may
have to be the case if the uranium supply is as restricted as many claim. The
pro-nuclear stance was supported by Elon Musk (2015), who promoted nuclear as a
suitable carbon-reducing option – however not on a global scale, but only in
areas that are not prone to natural disasters such as France. This therefore
places nuclear as “one of many” energy requirements needed on a global level to
challenge climate change.
![]() |
| COP 21 in Paris has the ultimate goal of creating an international legally binding agreement on climate, aiming to keep warming below 2°C (COP 21 2015). |
These challenges were made clear to be following the experience of the COP 21 workshop we
recently undertook, which involved role-play negotiations etc. What became
clear to me was the vast magnitude of changes required in order to prevent the
2C increase, and even if that is succeeded then sea-level rise will still have
major implications. Therefore nuclear is not the full answer – the extreme
changes that are needed will require all possible technologies and strategies available
to reduce the threat of climate change. Whilst also ensuring economic viability persists.
One nation which is backing nuclear energy at COP 21 is
India, with overall goals to produce 40% of their energy with 0 emissions – with nuclear playing a major
role in fulfilling this percentage. India plans to have 63 gigawatts of
nuclear by 2032, whilst also benign central to increasing the potential for a global expansion. Funding will also be placed into research to enable a
greater level of nuclear accessibility in developing nations – highlighting
their outlook on the potential for nuclear to achieve climate goals (Taylor 2015).
![]() |
| India's Additional Secretary Susheel Kumar speaking at the National Resources Defence Council panel at COP 21, 4th December (Taylor 2015). |
The Compact of States and Regions is a scheme that is
supported by the UN, which primarily reports on greenhouse gas production. The Scheme’s
governance includes 18 countries, with around 1/8 global economy and >12%
global emission represented by the group. At COP 21 the group announced it was aiming
to cut its emissions by more than the annual Chinese production by 2030 – with
even greater claims of cutting emission by the equivalent of the total global
greenhouse production of 2012, by 2050! The way in which they see these highly
ambitious targets to be reached – nuclear! They do support other renewables;
however the fact that solar and wind do not produce energy 24 hours of the day, highlights how such energy resources can not be trusted in isolation (Casey 2015).
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| The first report from the Compact of States and Regions. It is the first single, global account of greenhouse gas reduction targets made by national and regional governments (The Climate Group 2015). |
The fear from many at COP 21 is that anti-nuclear positions may
cause a fall back to fossil fuels if the renewable energy sector has not
progressed to a level which can provide national requirements (Connor 2015). Caldeira of
the Carnegie Institution for Science in Washington again reiterates the point I
have made about the need for change immediately, that nuclear can provide 0 carbon NOW –
there is simply not enough time to wait until renewables are available at the necessary
scale. The longer we delay action, the greater the warming and the more devastating
the results to our biosphere. That not using all fossil fuel alternatives at
this stage of urgency would be “crazy” (Connor 2015)!
However the nuclear presence at COP 21 is not all positive,
with movements such as “Don’t Nuke the Climate” appearing within the conference
centres everyday of COP 21. The Nuclear Information and Resource Service has booths within the centres and meeting points, attempting to
communicate with government representatives to prevent both fossil fuels and
nuclear energy from being in their plans to fight climate change (NIRS 2015). The movement looks to Germany as the example, with the emissions in 2014 reducing over 4% from 2013 levels - with a complete absence of nuclear. As previously mentioned
Germany closed multiple nuclear stations after the Fukushima disaster (Harding 2011), with the nation still maintaining a strong anti-nuclear stance .
![]() |
| "Don't Nuke the Climate" logo (NIRS 2015). |
The Director of the World Nuclear Association, Agneta Rising, promotes nuclear within COP 21 claiming:
"To
implement the goals of an ambitious COP 21 agreement governments need to
develop policies that encourage investment in low carbon generation, especially
nuclear energy. We need 1000 GWe of new nuclear capacity by 2050 to
combat climate change" (WNA 2015).
This level of nuclear production will be essential to drop electricity emissions by 80% by 2050 to prevent the 2C threshold from being breached (WNA 2015).
If the COP 21 targets are going to be met, nuclear must be
involved – all options must be used to their capacity to overcome the urgency
and magnitude of the issues that are being faced in the modern world.
Thursday, 3 December 2015
Multiple Nuclear Uses
Despite common assumption, nuclear is not just used as an
energy source. There are multiple uses that are available which can benefit
human society. This post will give a brief overview of the other nuclear
processes that may be further developed in the future.
Nuclear reactors can produce radioisotopes, which are
radioactive and emit particles or waves (WNA 2015a). The radioisotopes are of
other important use, other than the splitting of the uranium isotope atom for
energy production. One of the most common uses of nuclear reactor products is
the household smoke detector. Americium-241 originates within nuclear reactors; it emits
alpha particles which consequently allows for a current to pass through. If
smoke enters the detector it is absorbed by the emitted alpha particles, cuts
the current and initiates the alarm. Nuclear products are therefore a mainstay
in developed households – a desire to remove all reactors (Greenpeace 2015) could
therefore limit public safety. The counter-argument would be that nuclear disasters are
a far greater risk to public health than smoke detection.
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| Nuclear radioisotopes are commonly used within the domestic smoke detector. Image Source (SafeSoundFamily 2015). |
Nuclear
energy is not only produced for domestic or industrial use, it also has a
strong prevalence within transportation. For example it is highly desirable
within ships and ocean vessels that have to remain in the ocean for prolonged
periods of time, without the capability for refuelling (WNA 2015b). Current
estimates suggest that over 140 ships are powered by 180+ nuclear reactors
(WNA 2015b). Furthermore nuclear electricity production can be essential to
provide for electric cars, allowing for nuclear energy to further reduce the
threat of emissions that is paramount within current global energy choices. The
heat from nuclear reactions can also be used in the formation of liquid hydrocarbon fuels from coal – arguably this
does not support its positive influence on mitigating climate change, but
highlighting its importance in an ever-increasingly mobile society.
![]() |
| The US nuclear reactor-powered Los Angeles-class attack submarine USS Tuscon (Washington Times 2015). |
Transportation into
space has also been heavily influenced by the nuclear potential (WNA 2015c). For
example radioisotope
thermoelectric generators have been the dominant energy resource within the US
space programme which the 1960s. One way in which it is utilised is to aid the
propulsion once in space. Nuclear fission heats a hydrogen propellant fuel –
this hot gas which is in excess of 2500°C is then released and provides
additional thrust. Therefore nuclear energy may be central to progressing human
knowledge further into the unknowns of space!
N-15 radioisotopes can be used in fertilizers to detect the level of
nitrogen uptake certain crops undertake (WNA 2015a) – this will therefore allow
for more efficient fertilizer use and increase the productivity to its
capacity. Furthermore, radiation induced mutations have been promoted to
develop over 1,800 crop varieties (WNA 2015a). Often through the use of gamma
radiation or neutron irradiation, new genetic pathways can be produced. Potentially
aiding food security and developing crops that are resistant to pests or
droughts for example. Obviously this does have the potential to mitigate world
hunger; however there are also the clear ethical complications of human culture
integrating itself within nature (Castree 2003). This irradiation has also been
utilised to preserve food such as vegetables and meat (WNA 2015a). The
irradiation can remove insects from food stocks as well as gamma exposure
removing bacteria, allowing for greater preservation – once again overcoming a global challenge of food security. Irradiation of the food does not make it
radioactive – therefore the health concerns that inevitably will arise from
nuclear opposition can be dismissed.
Nuclear isotope production also has an importance within hydrology and
water security. They can be useful tracers of groundwater flows and
identification of new sources (WNA 2015a). They can aid investigations into the
age, as well as the residency time – which will be essential in calculating the
max sustainable yield in order for groundwater extraction to remain
sustainable. This use is likely to gain greater importance in the coming years
with increasingly infrequent precipitation and prolonged droughts removing
large proportions of surfice water sources in arid and semi-arid locations
(Taylor 2012).
![]() |
| Current severe drought in Botswana. Highlighting importance of accessing and detecting groundwater sources. Photographer: Tshepo Mongwa (Daily News 2015). |
As previously mentioned nuclear has the vast potential to be used within desalination, both of ocean water and urban waste water (WNA 2015d), further highlighting the importance in providing water security. The World Economic Forum report in January 2015 claims freshwater access will be the predominant global crisis over the next 10 years - therefore nuclear is essential in preventing this high magnitude concern to increase further. Wars over water have been a mainstay in historic conflict, nuclear may provide a greater opportunity for peace. Ironic, when weapons and war are commonly attached to images of nuclear! Furthermore, common desalination practice currently uses fossil fuels (WNA 2015d), therefore nuclear can mitigate climatic warming at the same time as ensuring the global population has access to an essential resource. Evidence from Kazakhstan, India and Japan show the costs of desalination via nuclear to be of a similar cost to the fossil fuel method (WNA 2015d), US$ 70-90 cents/ m3, suggesting it is cost effective and therefore increasing the chances of wider scale transition.
Nuclear radioisotopes also have a strong importance within the medial
sphere, with nuclear techniques providing better examinations than traditional
x-ray (WNA 2015a). Nuclear techniques allow the images of bone AND soft tissue
to be developed, allowing greater medical information to be collected.
Furthermore, the use of the isotope Iodine-131 is a common, successful cure for
thyroid cancer (WNA 2015). Whilst there is also the development of a new
technique that uses the nuclear isotope samarium-153 alongside organic phosphate to treat
cancerous growths within the bone. Therefore nuclear products cannot be generalised
as a risk to human health – they may in fact be central to improving it!
Therefore
views on nuclear have to be expanded, it is no longer just a process of energy
creation (despite that being the dominant use) – but a process that can provide
food and water security, treat medical illnesses and expand the limits of human
knowledge. Surely something which such potential has to be supported in the
coming years!
Tuesday, 24 November 2015
Nuclear and Biodiversity - Revisited
A comment on a previous post has encouraged me to look at
the impact of nuclear on biodiversity from a different angle. This will focus
on the recent paper (Deryabina 2015) and how animals populations have shifted
in the exclusion zone of the Chernobyl disaster. Surprisingly the number of elk, deer and wild boar in the Belarus exclusion
zone are on a similar level to that in nearby nature reserves (Vaughan 2015).
This would therefore directly oppose the intuitive beliefs that the continued
radioactive exposure would cause nothing by damage to faunal communities.
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| Abundance of mammal species following the disaster in the exclusion zone. A clear increase in the early 90s following the removal of human activity (Deryabina 2015). |
What this highlights is the
fact that even the most drastic nuclear explosion does not impact wildlife
as much as the everyday human actions such as agriculture. The exclusion zone
has removed people; therefore this perhaps supports a “fortress approach” to
biodiversity conservation (Hutton 2005). Where the total removal of humanity is
essential for natural conditions to recover and prosper – a process supported
by lion researcher Craig Packer (Vidal 2015). The removal of humans was the catalyst for an unintentional rewilding programme (Howard 2007), with the dominance of pine and oak forests emerging (Chernobyl [WWW] 2015).
Professor Jim Smith claims
that the industrial and agricultural developments in the area before the disaster
probably meant that the population sizes were lower than the sizes experienced
in the exclusion aftermath. There is even evidence for some species that were
previously not present to have established themselves in the exclusion zone
such as the European Bison and the Lynx (Vaughan 2015) – these may have been a
product of human introduction, yet it does highlight the biodiversity carrying capacity
of the area to have enhanced!
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| Elk within the Chernobyl exclusion zone (Vaughan 2015). |
It would be wrong to say that
the disaster was “positive” for wildlife, with evidence displaying the incredibly
high radioactive levels within the first 6 months – 1 year to drastically
negatively impact on wildlife health and fecundity (Deryabina 2015).
However on the long term, positive points may be promoted with no significant
declines in mammal density. This highlights wildlife’s incredible resilience to radiation, as well as illustarting the magnitude of damage that general human
presence and development plays on wildlife.
Therefore critics of nuclear that claim that the threats to
the environment are too high to risk, could arguably be dismissed as shortsighted. Focusing
solely on nuclear energy, blind to the fact that the modern capitalist society itself
is causing far more damage than the construction of a power plant ever could. This
study helps put the risks into perspective.
African Nuclear - Part 3
The Nuclear Energy Corporation
of South Africa is also seen to have agreements in place with Russian companies
in regards to plant management and waste control – the key component of the
agreement is the construction of a 9.6GW reactor (WNA 2015) – this therefore
highlights the point made in the “future” post and how partnerships on an
international scale would appear to be the present and future of the nuclear
expansion potential. This will look to develop from the current presence of 2
reactors in the country, providing 5% of the nation’s supply (WNA 2015). It is hoped
to increase this to 13.4% by 2030, making it the 2nd largest
national producer, behind coal (WNA 2015). Coal remaining dominant may
undermine the climatic benefits – yet an increase in nuclear must surely be
recognised as a step in the right direction!
Nigeria
is the most populated nation in Africa and therefore requires vast energy
supplies – yet as a net exporter of oil certain limitations are in place and
the energy produced is not sufficient (CIGI 2010) for the 177.5 million population
(World Bank 2014). Existing energy is weak, with the national grid having one
of the largest disruption and loss rates in the world and the three hydroelectric
plants suffering from inconsistent water resources, leakage and maintenance issues (CIGI 2010). The insufficient water supply is tied to climatic change and the
increasing reductions in effective moisture – a process that has been
replicated throughout the epoch (as seen in my upcoming dissertation)! Therefore
with accessible imported uranium (perhaps from the large stores in neighboring Niger), Nigeria could use nuclear to improve the self-sufficiency
of the energy supply and reduce the reliance upon both fossil fuels and the scarce water resources. This process will be aided by the support of such
groups as the Nigerian Atomic Energy Commission – that looks to drive the
ability for national exploitation of atomic energy, by training personnel and partnering
with the private sector to streamline investment and funding for construction (NAEC 2007).
Nuclear
is expanding, even within the most impoverished region of the world,
Sub-Saharan Africa, there is strong development and interest. International
partnerships are driving this growth, with the support from China for example spreading
into Latin America and Africa with the promise of cheap equipment and exponential
levels of funding. The nuclear future is arguably already in action…
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| Current South African nuclear potential (WNA 2015). |
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| NAEC Logo (NAEC 2007). |
African Nuclear - Part 2
Despite the issues – the need for nuclear is clear –
especially when framed in relation to energy security with only 24% of the
Sub-Saharan population actually having access to electricity (World Bank 2013). Furthermore,
there are issues with reliability, where loss of power occurs on average 56
days a year – which has led to firms losing between 6 and 20% of revenues
(World Bank 2013) – the continual and reliable energy production from nuclear therefore
could provide the greater confidence in the electricity source and consequently
provide greater economic security also. The World Bank (2013) also notifies
high costs, which therefore will limit the electricity access and the development
potential, the stable costs provided by nuclear (WNA 2015) and the tendency to
provide lower costs to consumers than the majority of fossil fuels (The Economist 2015) – may allow for the profitability within the Sub-Saharan region
to be boosted.
The potential is supported by the internal uranium supplies,
meaning internal economic security as there will not be a dependency upon
international trade prices and accessibility. Namibia and Niger are among the
nations to have vast uranium stores that can be processed into fuel (Abdulrazak 2013). There is also the potential based upon large areas of land and water
available for the construction – one point in which I would argue is the water
accessibility, with surficial waters sparsely located and climatic change
adding to drought frequency (Freitas 2013) – water availability may be required
for consumption rather than reactor construction. Another positive of the African potential
is the fact that compared to other areas – most notably Japan – it is relatively
tectonically stable (Abdulrazak 2013) – therefore reactors will be less prone
to disaster as well as having potentially suitable, stable geology for deep
storage.
![]() |
| Africa has relatively minimal susceptibility to seismic activity. With the exception of the East African Rift - it would appear an ideal location for safe nuclear to be established. Data Source (NOAA 2014) - Image source (CBC News 2014). |
Abdulrazak (2013) is the head for Kenya's National Council for Science and Technology, he views the
need for partnerships to be required if African funding for nuclear is going to
be available – he views the IMF and World Bank to be central sources. However,
as if often seen with the funding from these international organisations, the autonomy
of the nuclear sector may be lost. This could lead to a possible favouring of foreign
investment – particularity from China. Recent activities show Chinese state investment
into the UK and Latin America – could Africa be the next Chinese nuclear project?
The current evidence would suggest so!
Partnerships are already in place between China and South Africa. One of many
bilateral agreements was signed recently on 12th November 2015
between the South Africa’s National Nuclear Regulator and China’s National
Nuclear Safety Administration (WNN 2015) – this agreement promotes the sharing of
information on the regulation procedures they undertake. Previous agreements
were already in place with nuclear fuel partnerships and training contracts.
Furthermore a framework agreement was established for Chinese funding for a new
South African Power Plant (WNN 2014). Another example being the Chinese Agreement for nuclear reactor construction in Kenya by 2050 (M&G Africa 2015). Targets of an initial 1000MW capacity are hoped to be expanded to 4000MW
by 2033 – therefore driving nuclear energy to become a “key component of the
country’s energy production” - a quote from the Kenyan Nuclear Electricity
Board following the announcement of the agreement. This is the start of nuclear
energy expansion in Africa beyond South Africa – which remains the only African
nation with current “active” plants in place.
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| The agreement was signed by Mzubanzi Bismark Tyobeka and Li Ganjie in regards to the sharing of regulation information (WNN 2015). |
African Nuclear - Part 1
Nuclear energy is present in national debates on a global
scale. Africa is seen to be increasingly considering nuclear in this current
period of expansion and investment. This topic arose from a recent piece in the
IOL Business report (Magubane 2015) and the push for nuclear energy within
South Africa. The group “Nuclear Africa” is central to this ambition with
desires for the national energy to be nuclear produced – yet the group also
acknowledges the restraints from public opinion which were noted in one of my
earlier posts. Dr Kemm the CE of the organisation looks at public exaggerations
(Drottz-Sjoberg 1990) to have been driven by the media and the dramatised
oppositions of groups such as Greenpeace – which I have already noted as being
heavily bias and blind to the potential nuclear benefits. These environmental
groups are spreading, what could be termed “propaganda” of nuclear disasters,
limiting public support and consequently diminishing the scope of possibility.
Despite this Africa’s nuclear growth has begun, 10 nations have projects with a
further 20+ undertaking serious considerations of promoting a nuclear sector
(Magubane 2015).
Greenpeace (2015), once again is a major oppositional actor,
that looks to drive public disapproval and nuclear removal. They have a particular
campaign for the potential expansions of nuclear within South Africa - with critiques
of the R1 trillion costs and the lack of transparency. They claim secrecy is detrimental
to public accountability – yet surely costs etc. are needed to be kept secret
in order for the best price to be obtained by the developer? Dr.Kemm makes the
same point:
![]() |
| Greenpeace nuclear protects in South Africa (Greenpeace 2015). |
“This is a bidding process. If you were building a house, you
would not tell a builder how much another builder was quoting you” (Magubane 2015).
Greenpeace
(2015) also brings forward more general issues to the potential South African
growth, by highlighting the obstacles of security risks and waste storage.
Furthermore, the organisation claims energy requirements are needed now – the start-up
time for nuclear construction can be decades and therefore it is not solving the
energy requirement issues of today.
Interest is clear from other sub-Saharan nations such as
Uganda, Nigeria and Senegal (IBT 2013); however whether such ambitions are
actually attainable is another question. Many may be deterred by the failure of
the first African reactor in the Democratic Republic of Congo which shut down
due to overheating and the consequent safety concerns. This has led previous plans in Ghana for example to be questioned, not only due to safety – but as
mentioned the exponential costs may be out of reach for many of the African
nations. Kenya – has $3 million put aside for an energy planning committee,
alongside planned construction sites (IBT 2013), however once again it would appear
as if public and environmental group resistance is central to slowing the
potential within the nation.
Many would argue that if the nuclear disaster was capable of
occurring within the 3rd largest global GDP of Japan (World Bank 2014), then the potential for disaster surely must be higher within the
Sub-Saharan nations that have far less experience and monetary resources.
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| The closed nuclear plant in DRC, security and safety concerns are vast (Amoore 2013). |
Wednesday, 18 November 2015
Chinese investment continues
A recent nuclear development has been the continued push of Chinese nuclear funding on an international stage. The state owned China National Nuclear Corporation again will build and fund two nuclear reactors in Argentina (Anderlini 2015). The project is likely to cost $15 billion, with Chinese banks and private sector funding around 85% of the project, to be repaid over 18 years. This follows on from the recent Chinese investment in the Hinkley Point C project in the UK.
The partnership will enable the energy capacity to double – providing additional potential to the 3 nuclear reactors that are already functioning in Argentina. Anderlini (2015) sees the project in the UK as being the catalyst for further Chinese investment opportunities – success at the centre of developed Europe will promote more countries to follow in the footsteps to obtain the Chinese support. Many areas are removed from international credit markets, such as Buenos Aires, the centre of the nuclear developments – or struggle to obtain global investment due to corruption or war for example. China in particular seen to finance areas that have such limitations (Anderlini 2015), the inability for alternate funding in such areas means that there will be a greater interest in the Chinese investment. An issue may be that the dependency on exterior funds may reduce the autonomy of the national energy sector.
The Minister of Economy, Axel Kicillof, stated that the investment in nuclear plants “will secure our energy supply in the future” (WNN 2015). The relatively cheap Chinese technology and the exponential investment levels are driving a Chinese nuclear influence on a global scale.
![]() |
| President of the Argentinian Nucleoeléctrica, Jose Luis Antunez and the General Manger of China National Nuclear Corporation, Quian Zhimin - signing the agreement on 17th November 2015 (Financial Times 2015). |
The partnership will enable the energy capacity to double – providing additional potential to the 3 nuclear reactors that are already functioning in Argentina. Anderlini (2015) sees the project in the UK as being the catalyst for further Chinese investment opportunities – success at the centre of developed Europe will promote more countries to follow in the footsteps to obtain the Chinese support. Many areas are removed from international credit markets, such as Buenos Aires, the centre of the nuclear developments – or struggle to obtain global investment due to corruption or war for example. China in particular seen to finance areas that have such limitations (Anderlini 2015), the inability for alternate funding in such areas means that there will be a greater interest in the Chinese investment. An issue may be that the dependency on exterior funds may reduce the autonomy of the national energy sector.
The Minister of Economy, Axel Kicillof, stated that the investment in nuclear plants “will secure our energy supply in the future” (WNN 2015). The relatively cheap Chinese technology and the exponential investment levels are driving a Chinese nuclear influence on a global scale.
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