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The following paper was written back in 2007.  Since that time the Global Financial Crisis (GFC) struck and oil prices have not risen as projected.  But we are now hearing about peak oil again and there have been two programmes on radio and TV in the last fortnight floating the prospect of peak oil again. 

At the end of 2006 the documentary film A Crude Awakening warned that peak oil, ‘the point in time when the maximum rate of petroleum production is reached, after which the rate of production enters its terminal decline’, is at hand. 

Perhaps the most important argument in A Crude Awakening is that energy, including oil, replaces human labour and does so very efficiently.  It is the harnessing of energy that has allowed human civilisation to free people from slavery and serfdom and it is the harnessing of energy that has fuelled technological progress. 

It has also fuelled an increase in human population from less than a billion in 1800 to over six and a half billion today.

The most obvious defect in the documentary is that it represents oil as the only source of energy available to mankind.  This is not the case.  Until quite recently coal was the dominant energy source.  Coal fuelled the industrial revolution.  In some parts of the world hydroelectric power was also an important driver of industrialisation before oil and, where available, is still the most environmentally friendly and least expensive energy source we have. 

It is true that petroleum (oil and gas) has recently taken over the leading position as principle energy source; and contributor to carbon dioxide production.  Petroleum is more convenient and has higher energy density than most other options (see below) and produces less carbon dioxide per unit of energy than coal. It dominated transport and chemical production for the last two thirds of the 20th century and will continue to do so for at least the first half of the 21st.

The following diagram shows the sources of energy (for all purposes) in Australia in 2007/8[1].

 

 

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It was oil that made the Second World War possible, oil that provided a car to every family soon after and oil that opened the world to inexpensive air travel. 

A Crude Awakening makes the point that we have already half used this amazing resource, in a shockingly spendthrift way, over an extraordinarily short period of time.

 

 

 

A personal view 

This chapter can now be read at:  'Getting About'

 

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Travel

Cambodia and Vietnam

 

 

 In April 2010 we travelled to the previous French territories of Cambodia and Vietnam: ‘French Indochina’, as they had been called when I started school; until 1954. Since then many things have changed.  But of course, this has been a region of change for tens of thousands of years. Our trip ‘filled in’ areas of the map between our previous trips to India and China and did not disappoint.  There is certainly a sense in which Indochina is a blend of China and India; with differences tangential to both. Both have recovered from recent conflicts of which there is still evidence everywhere, like the smell of gunpowder after fireworks.

Read more: Cambodia and Vietnam

Fiction, Recollections & News

The Meaning of Death

 

 

 

 

 

 

'I was recently restored to life after being dead for several hours' 

The truth of this statement depends on the changing and surprisingly imprecise meaning of the word: 'dead'. 

Until the middle of last century a medical person may well have declared me dead.  I was definitely dead by the rules of the day.  I lacked most of the essential 'vital signs' of a living person and the technology that sustained me in their absence was not yet perfected. 

I was no longer breathing; I had no heartbeat; I was limp and unconscious; and I failed to respond to stimuli, like being cut open (as in a post mortem examination) and having my heart sliced into.  Until the middle of the 20th century the next course would have been to call an undertaker; say some comforting words then dispose of my corpse: perhaps at sea if I was travelling (that might be nice); or it in a box in the ground; or by feeding my low-ash coffin into a furnace then collect the dust to deposit or scatter somewhere.

But today we set little store by a pulse or breathing as arbiters of life.  No more listening for a heartbeat or holding a feather to the nose. Now we need to know about the state of the brain and central nervous system.  According to the BMA: '{death} is generally taken to mean the irreversible loss of capacity for consciousness combined with the irreversible loss of capacity to breathe'.  In other words, returning from death depends on the potential of our brain and central nervous system to recover from whatever trauma or disease assails us.

Read more: The Meaning of Death

Opinions and Philosophy

The Fukushima Nuclear Crisis

 

 

Japan has 55 nuclear reactors at 19 sites.  Two more are under construction and another twelve are in the advanced planning stage.  Net Generating capacity is around 50 GW providing around 30% of the country's electricity (more here).  

As a result of Japan’s largest earthquake in history on March 11 and subsequent tsunami all reactors shut down automatically as they were designed to do but cooling systems associated with two sites had been damaged. 

Three reactor sites are adjacent to the earthquake epicentre and two were in the direct path of the tsunami.  The Fukushima-Daiichi plant belonging to Tokyo Electric Power Company was particularly hard hit.  It lost all grid connections, providing electricity, and its backup power plant was seriously damaged. 

Read more: The Fukushima Nuclear Crisis

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