No 1636 Posted by fw, April 8, 2016
“People hate to think about bad things happening, so they always underestimate their likelihood.“ – The Big Short (movie)
“If a person doesn’t understand what the problem is, it is easy to come to the wrong conclusion. Part of our problem is that we need a growing amount of net energy, per capita, to keep the economy from collapsing. Part of our problem is that entropy problems such as rising debt, increased pollution, and increasing complexity tend to bring the system down, even when we seem to have plenty of energy supplies. These are the two big problems we are facing that few people recognize…. As far as I can see, renewable energy, unless it is very cheap (like hydroelectric dams were many years ago), absolutely does not work as a solution to our energy problems…. If these problems are not fixed, the whole system will collapse, even though there seems to be a surplus of energy products.” —Gail Tverberg
Gail Tverberg is an actuary, qualified to calculate risks and probabilities involving future events, who is interested in finite world issues – oil depletion, natural gas depletion, water shortages, and climate change.
In a November 2014 paper, Tverberg exposed the simplistic thinking of alleged benefits of green energy solutions — more hype than hope. In a February 2015 paper, she continued her analysis of our energy options, beginning her concluding paragraph this way: “It would be nice to have a way around limits in a finite world. Unfortunately, this is not possible in the long run. At best, green solutions can help us avoid limits for a little while longer.”
Gail’s back – this time with a penetrating analysis of the problems with our economic growth system, problems that most people fail to even recognize much less understand. The introductory passage above captures the main ideas of her latest paper.
The abridged repost of the paper, below, is presented in three segments: 1) Gail examines the interrelationship of the three big unwanted “co-products” of the world energy system – rising debt, rising pollution, and a more complex economy; 2) she explains why renewable energy can’t be a solution, because it generates its own unwanted co-products; and 3) her Conclusion – paradoxically, even though there seems to be a surplus of energy products, if the problems in the system aren’t fixed, the whole system will crash.
To read Gail’s original paper, with its abundant graphs and technical explanations, click on the following linked title. If you prefer a less technical version without the graphs, yet in Gail’s own words, read the abridged version below, presented in three segments.
1/ — The World Energy System Is Reaching Limits in a Strange Double Way
We are experiencing a world economy that seems to be reaching limits, but the symptoms are not what peak oil groups warned about. Instead of high prices and lack of supply, we are facing indirect problems brought on by our high consumption of energy products. In my view, we have a double pump problem.
We don’t just extract fossil fuels. Instead, whether we intend to or not, we get a lot of other things as well: rising debt, rising pollution, and a more complex economy.
The system acts as if whenever one pump dispenses the energy products we want, another pump disperses other products we don’t want. Let’s look at three of the big unwanted “co-products.”
Rising debt is an issue because fossil fuels give us things that would never have been possible, in the absence of fossil fuels. For example, thanks to fossil fuels, farmers can have such things as metal plows instead of wooden ones and barbed wire to separate their property from the property of others. Fossil fuels provide many more advanced capabilities as well, including tractors, fertilizer, pesticides, GPS systems to guide tractors, trucks to take food to market, modern roads, and refrigeration.
The benefits of fossil fuels are immense, but can only be experienced once fossil fuels are in use. Because of this, we have adapted our debt system to be a much greater part of the economy than it ever needed to be, prior to the use of fossil fuels. As the cost of fossil fuel extraction rises, ever more debt is required to place these fossil fuels in use. The Bank for International Settlements tells us that worldwide, between 2006 and 2014, the amount of oil and gas company bonds outstanding increased by an average of 15% per year, while syndicated bank loans to oil and gas companies increased by an average of 13% per year. Taken together, about $3 trillion of these types of loans to the oil and gas companies were outstanding at the end of 2014.
As the cost of fossil fuels rises, the cost of everything made using fossil fuels tends to rise as well. Cars, trucks, and homes become more expensive to build, especially if they are intended to be energy efficient. The cost of capital goods purchased by businesses rises as well, since these too are made with fossil fuels. Needless to say, the amount of debt to purchase all of these goods rises as well. Part of the reason for the increased debt is simply because it becomes more difficult for businesses and individuals to purchase needed goods out of cash flow.
As long as fossil fuel prices are rising (not just the cost of extraction), this rising debt doesn’t look like a huge problem. The rising fossil fuel prices push the general inflation rate higher. But once prices stop rising, and in fact start falling, the amount of debt outstanding suddenly seems much more onerous.
Rising pollution from fossil fuels is another issue as we use an increasing amount of fossil fuels. If only a tiny amount of fossil fuels is used, pollution tends not to be much of an issue. Air can remain safe for breathing and water can remain safe for drinking. Increasing CO2 pollution is not a significant issue.
Once we start using increasing amounts, pollution becomes a greater issue. Partly this is the case because natural sinks reach their saturation point. Another is the changing nature of technology as we move to more advanced techniques. Techniques such as deep sea drilling, hydraulic fracturing, and arctic drilling have pollution risks that less advanced techniques did not have.
A more complex economy is a less obvious co-product of the increasing use of fossil fuels. In a very simple economy, there is little need for big government and big business. If there are businesses, they can be run by a small number of individuals, with little investment in capital goods. A king, together with a handful of appointees, can operate the government if it does not provide much in the way of services such as paved roads, armies, and schools. International trade is not a huge necessity because workers can provide nearly all necessary goods and services with local materials.
The use of increasing amounts of fossil fuels changes the situation materially. Fossil fuels are what allow us to have metals in quantity–without fossil fuels, we need to cut down forests, use the trees to make charcoal, and use the charcoal to make small quantities of metals.
Once fossil fuels are available in quantity, they allow the economy to make modern capital goods, such as machines, oil drilling equipment, hydraulic dump trucks, farming equipment, and airplanes. Businesses need to be much larger to produce and own such equipment. International trade becomes much more important, because a much broader array of materials is needed to make and operate these devices. Education becomes ever more important, as devices become increasingly complex. Governments become larger, to deal with the additional services they now need to provide.
Increasing complexity has a downside. If an increasing share of the output of the economy is funneled into management pay, expenditures for capital goods, and other expenditures associated with an increasingly complex economy (including higher taxes, and more dividend and interest payments), less of the output of the economy is available for “ordinary” laborers–including those without advanced training or supervisory responsibilities.
As a result, pay for these workers is likely to fall relative to the rising cost of living. Some would-be workers may drop out of the labor force, because the benefits of working are too low compared to other costs, such as childcare and transportation costs. Ultimately, the low wages of these workers can be expected to start causing problems for the economic system as a whole, because these workers can no longer afford the output of the system. These workers reduce their purchases of houses and cars, both of which are produced using fossil fuels and other commodities.
Ultimately, the prices of commodities fall below their cost of production. This happens because there are so many of these ordinary laborers, and the lack of good wages for these workers tends to slow the “demand” side of the economic growth loop. This is the problem that we are now experiencing.
2/ — Can Renewable Energy Be a Solution?
As far as I can see, renewable energy, unless it is very cheap (like hydroelectric dams were many years ago), absolutely does not work as a solution to our energy problems. The basic issue is that the energy system works on a flow year basis. To match energy-in versus energy-out, we need to analyze each year separately. For example, we need to match energy going into making offshore wind turbines against energy coming out of offshore wind turbines, for each calendar year (say 2016). To keep the net energy flow positive, there needs to be an extremely slow ramp-up of high-cost renewable energy.
In a way, high-cost renewable energy is very close to entropy-only energy. Because of the high front-end energy consumption and the slow speed at which it is paid back, high-priced renewable energy generates very little energy, net of energy going into its production. (In some instances, renewable energy may actually be an energy sink.) Instead, renewable energy generates lots of entropy-related products, including increased debt and increased taxes to pay for subsidies. It also adds to the complexity of the system, because of the variable nature of its output. Perhaps renewable energy is less bad at generating pollution, or maybe the pollution is simply of a different type. Ultimately, it is a problem, just as any other type of supplemental energy is.
One problem with so-called renewable energy is that it can’t be expected to outlast the system as a whole, unless it is part of some off-grid system with backup batteries and an inverter. Even then, the lifetime of the whole system is limited to the lifetime of the shortest-lived necessary component: solar panels, battery backup, inverter, and the device the user is trying to run with the system, such as a water pump.
There are currently many stresses on our economic system. We can’t be certain that the system will last very long. When the system starts collapsing, it is likely to take grid-connected electricity systems with it.
3/ — Conclusion
If a person doesn’t understand what the problem is, it is easy to come to the wrong conclusion. Part of our problem is that we need a growing amount of net energy, per capita, to keep the economy from collapsing. Part of our problem is that entropy problems such as rising debt, increased pollution, and increasing complexity tend to bring the system down, even when we seem to have plenty of energy supplies. These are the two big problems we are facing that few people recognize.
Another part of our problem is that it is necessary for common laborers to have good-paying jobs, and in fact rising pay, if the economy is to continue to grow. As much as we would like everyone to have advanced training (and training that changes with each new innovation), the productivity of workers does not rise sufficiently to justify the high cost of giving advanced education to a large share of the population. Instead, we must deal with the fact that the world’s economy needs large numbers of workers with relatively little training. In fact, we need rising pay for these workers, because there are so many of them, and they are the ones who keep the “demand” part of the commodity price cycle high enough.
Robots may be very efficient at producing goods and services, but they cannot recycle the earnings of the system. In theory, businesses could pay very high taxes on the output of automated systems, so that governments could create make-work projects to hire all of the unemployed workers. In practice, the idea is impractical–the businesses would simply move to an area with lower taxes.
Growth now is slowing because of all of the entropy issues involved. People in China cannot stand any more pollution. Too many laborers in developed countries are being marginalized by globalization and by competition with ever-more intelligent machines that can replace much of the function of humans. None of this would be a problem, except that we have a huge amount of debt that needs to be repaid with interest, and we need commodity prices to rise high enough to encourage production. If these problems are not fixed, the whole system will collapse, even though there seems to be a surplus of energy products.
How Economic Growth Fails by Gail Tverberg, Our Finite World, August 10, 2015 — The economy operates within a finite world, so at some point, a problem of diminishing returns develops. In other words, it takes more and more effort (human labor and use of resources) to produce a given quantity of oil or food, or fresh water, or other desirable products. The problem of slowing economic growth is very closely related to the question: How can the limits we are reaching be expected to play out in a finite world? Many people imagine that we will “run out” of some necessary resource, such as oil, but I see the situation differently. Let me explain a few issues that may not be obvious. To continue reading click on the above linked title…
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