Energy at the Crossroads: Global Perspectives and Uncertainties
by Vaclav Smil
Vaclav Smil is a professor at the University of Manitoba and has been widely published on energy issues for the past several decades. According to his web site, his academic interests include:
My interdisciplinary research encompasses a broad area of environmental, energy, food, population, economic and public policy studies, ranging from quantifications and modeling of global biogeochemical cycles to long-range appraisals of energy and environmental options.
Perhaps I have read other books that are as fact intensive as this one, but I can't remember any offhand. Among the many topics Smil addresses are:
1. The history of energy.
2. The linkage between energy and the economy. This includes many interesting graphs showing the relationship between energy intensity and economic performance. He reaches many interesting conclusions, including the surprising one that the European economy is less energy intensive than that of the United States mainly because its cities are closer together and has fewer net heating days and air-conditioning days because of its milder climate.
3. The linkage between energy intensity and quality-of-life. There is a strong correlation between energy intensity of an economy and such factors as female life expectancy at birth, average per capita food availability and the United Nations Human Development Index, but, somewhat surprisingly, much less of a correlation between energy intensity and political freedom. He concludes that annual per capita energy consumption of between about 50 to about 70 GigaJoules appears to be the minimum for any society for a general satisfaction of essential physical needs combined with fairly widespread opportunities for intellectual advancement and with respect for basic individual rights. In the United States, average per capita energy use is about 340 giga joules.
4. Throughout the book, Smil discusses several current issues in a great amount of detail, including the current debate over Peak Oil and the debate over theories of abiotic origin of petroleum and natural gas. He spends a great deal of time discussing the general lack of success that experts have had predicting energy trends in past decades. One perhaps unfortunate consequence of this is that he rarely takes a firm position or makes a firm conclusion on any of these current topics.
5. On the issue of Peak Oil, he discusses the weaknesses of both sides arguments, states that it is unlikely that oil production will peak before 2010, and then is on to say that we should be all right even if it does. He addresses Colin Campbell's work in detail, and identifies its weak points as the near impossibility of knowing what the ultimately recoverable amount of oil will be, both in terms of physical deposits and improved technology that is yet to come. One of the improved technologies that he mentions is that of directional drilling, which in fact is has been taken into account by many energy commentators in determining the size of Ultimately Recoverable Reserves. Smil seems to believe that there will be a painless transition to natural gas at the first sign of rising oil prices, which may be unrealistic given the developing natural gas supply situation on the North American continent.
6. On the theory of abiotic oil he reaches no conclusions but recommends that experts keep an open mind on the issue. Apparently, the best evidence that proponents of the theory have is the presence of helium in oil deposits, which typically is associated with inorganic processes, and the best evidence that the naysayers have is the presence of carbon 13, in amounts that would be expected in sedimentary deposits of plant life.
7. There was an extensive section on methane hydrates, which he seems to think might be a legitimate fuel for the future. Apparently, the volume of methane hydrate deposits is really quite enormous. He thinks that the most likely locations for the initial harvesting of these deposits would be in Arctic offshore permafrost sediments, such as those by Prudhoe Bay in Alaska.
8. He notes that the European power transmission grid is in much better shape than the corresponding American power grid. The European power grid is much more able to transmit power from remote locations such as the planned wind farms by the North Sea to the population centers. The North American power grid will need substantial upgrading before potential wind energy in the Great Plains can be directed to the East Coast or the West Coast. Similarly, Europe is in a great physical position to receive natural gas from pipelines from Russia and the Middle East. American will be forced to receive its future natural gas supplies increasingly in LNG form by tanker.
9. Throughout the book, he mentions that the burning of fossil fuels is creating a clear threat to the biosphere, but when it came time to discuss global warming again he failed to reach a clear conclusion that it really presented a problem. His attitude seemed to be that we should take action because it might be a problem and we can afford to be wrong if there is. Sensible enough, I suppose. On the issue of nuclear power he admitted that he has no idea of what the future may hold. As throughout the book, he presents both sides of the debate but fails to state a final judgment of his own. This doesn't detract from content of the book, but I found it somewhat frustrating as by reading the book I developed a great deal of respect for the author and would have liked to known his judgments on such matters.
I would thoroughly recommend this book to anyone who seeks to have a detailed understanding of energy issues. Smil is clearly a top-level academic thinker, and it shows in this book.
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