Food for Thought 3
Reaction Time and the Nuclear
Option
Only a few years ago Arctic Ice survey
scientists were predicting that all the Arctic
ice shelf would disappear by the year 2100.
The vast majority of us will not live to see that so
it is not hard to understand how we may feel disconnected
from the direness of such warnings. In recent weeks however
that prediction has been revised by the scientists to
the year 2030. What is happening in the arctic and in
the world’s glaciers (where much of the earth’s
fresh water is stored) is known as the albedo
effect, whereby as things warm up – even
incrementally – the ice
melts leaving less ice to reflect the sun’s rays. This means
more heat absorption by the oceans and so more melting
more quickly and so on … in a dangerous feedback
loop.
Significant global challenges will flow from that – devastation
to biodiversity and ecosystems (so long, farewell to
the now iconic polar bears and friends) and devastation
also for human communities from rises in sea levels that
would inundate low level lands across the globe. This
in turn would lead to millions needing to find
elsewhere to live. Cause, effect, cause, effect … ad
infinitum. And yet this is but one signal
among many that tells us time is running out
to turn around global warming.
One of the energy options being put forward
as a response to the need to move to a low or zero carbon
world, one that has gained support from some power elites
in government and the mining sector in recent times,
is nuclear energy. Ian Lowe,
physicist, thinker, educator and Emeritus Professor of
science technology and society at Griffith University,
is someone who knows his science and engineering and
who has travelled a journey from initial support of nuclear
power in the 1970s to advocating for the whole
nuclear industry to be shut down for the sake
of us all.
Ian Lowe’s Quarterly Essay, Reaction
Time – Climate Change and the Nuclear Option,
lays out the case against a nuclear future and
in doing so decimates the arguments for a nuclear future
as a response to climate change. The case he puts is
not emotive at all but based in clear, critical
analysis of the science, the economics and the
geopolitics.
He points out that the nuclear
option is:
-
not viable economically – the
economics just don’t stack up. It
would require massive taxpayer subsidies and its
true costs include decommissioning plants in the
future (while the plants may have a 50 year lifespan,
the decommissioning costs are never factored into
the equation, nor is the actual cost of setting
up infrastructure to store the waste safely for ¾ of
a million years). Even the Howard Government’s
Finance Minister, Nick Minchin, claimed that nuclear
power would not be viable for at least 100 years!
-
too slow. Even if
we decided tomorrow to go ahead with building plants
it is accepted that it would take in the order
of 10 to 25 years to get one up and running. Even
in the most aggressive nuclear scenario of 25 reactors
mooted by the Prime Minister’s pro nuclear
report the nuclear option would only have the potential
to reduce the growth of our greenhouse pollution
by 8-18%. We need to reduce total emissions not
just reduce the growth in emissions. Compare this
with the readily available technologies of wind
and some solar (a large wind turbine takes a year
to build and solar hot water systems can be installed
next week).
-
too dangerous. Wherever
civil nuclear industries have been set up, weapons
programs have not been far behind. Weapons proliferation
is a real and present danger especially in times
where security issues with non state actors have
come to the fore. Nuclear accidents occur. Chernobyl
today is still a vast wasteland and will be for many
millennia to come.
-
not carbon free. There
is significantly large carbon expenditure in getting
plants built in the first place, not to mention the
carbon resources required to mine and process the
uranium. Water is also a precious resource required
for the whole nuclear lifecycle from mines to decommissioning
of mines and reactors.
-
limited by limited uranium. Best
estimates show high grade ore could supply present
needs for only 50 years.
Given the case set out in Reaction
Time we have to ask: why is nuclear
really being put forward as an important answer to
the energy needs of Australia and the world? In the
tried and tested way of social analysis we need to
ask … Who wins in the nuclear scenario?
Who and what loses in the nuclear scenario? Given
that uranium exports bring in less than our cheese
industry, is it really worth putting the world at
further risk of devastation when there are truly
clean green options available and ready
to be upscaled in 1 to 5 years rather than 15 to
25 years? In this election year we must take
the time to critically think about what
is put to us in simplistic terms by politicians who
seem prepared to sacrifice God’s creation for
own short-term political gain and the economic gain
of the few over the rights of all creation to a sustainable
planet.
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Food for Thought 4
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