How does the world reach limits? This is a question that few dare
to examine. My analysis suggests that these limits will come in a very
different way than most have expected–through financial stress that
ultimately relates to rising unit energy costs, plus the need to use
increasing amounts of energy for additional purposes:
- To extract oil and other minerals from locations where extraction is very difficult, such as in shale formations, or very deep under the sea;
- To mitigate water shortages and pollution issues, using processes such as desalination and long distance transport of food; and
- To attempt to reduce future fossil fuel use, by building devices such as solar panels and electric cars that increase fossil fuel energy use now in the hope of reducing energy use later.
We have long known that the world is likely to eventually reach limits. In 1972, the book The Limits to Growth
by Donella Meadows and others modeled the likely impact of growing
population, limited resources, and rising pollution in a finite world.
They considered a number of scenarios under a range of different
assumptions. These models strongly suggested the world economy would
begin to hit limits in the first half of the 21st century and would eventually collapse.
The
indications of the 1972 analysis were considered nonsense by most.
Clearly, the world would work its way around limits of the type
suggested. The world would find additional resources in short supply. It
would become more efficient at using resources and would tackle the
problem of rising pollution. The free market would handle any problems
that might arise.
The Limits to Growth analysis modeled the world
economy in terms of flows; it did not try to model the financial system.
In recent years, I have been looking at the situation and have
discovered that as we hit limits in a finite world, the financial system is the most vulnerable part because of the system because it ties everything else together.
Debt in particular is vulnerable because the time-shifting aspect of
debt “works” much better in a rapidly growing economy than in an economy
that is barely growing or shrinking.
The problem that now looks
like it has the potential to push the world into financial collapse is
something no one would have thought of—high oil prices
that take a slice out of the economy, without anything to show in
return. Consumers find that their own salaries do not rise as oil prices
rise. They find that they need to cut back on discretionary spending if
they are to have adequate funds to pay for necessities produced using
oil. Food is one such necessity; oil is used to run farm equipment, make
herbicides and pesticides, and transport finished food products. The
result of a cutback in discretionary spending is recession or near
recession, and less job availability. Governments find themselves in
financial distress from trying to mitigate the recession-like impacts
without adequate tax revenue.
One of our big problems now is a
lack of cheap substitutes for oil. Highly touted renewable energy
sources such as wind and solar PV are not cheap. They also do not
substitute directly for oil, and they increase near-term fossil fuel
consumption. Ethanol can act as an “oil extender,” but it is not cheap.
Battery powered cars are also not cheap.
The issue of rising oil
prices is really a two-sided issue. The least expensive sources of oil
tend to be extracted first. Thus, the cost of producing oil tends to
rise over time. As a result, oil producers tend to require ever-rising
oil prices to cover their costs. It is the interaction of these two
forces that leads to the likelihood of financial collapse in the near
term:
- Need for ever-rising oil prices by oil producers.
- The adverse impact of high-energy prices on consumers.
If
a cheap substitute for oil had already come along in adequate quantity,
there would be no problem. The issue is that no suitable substitute has
been found, and financial problems are here already. In fact, collapse
may very well come from oil prices not rising high enough to satisfy the needs of those extracting the oil, because of worldwide recession.
The Role of Inexpensive Energy
The fact that few stop to realize is that energy of the right type is absolutely essential for making goods and services of all kinds. Even
if the services are simply typing numbers into a computer, we need
energy of precisely the right kind for several different purposes:
- To make the computer and transport it to the current location.
- To build the building where the worker works.
- To light the building where the worker works.
- To heat or cool the building where the worker works.
- To transport the worker to the location where he works.
- To produce the foods that the worker eats.
- To produce the clothing that the worker wears.
Furthermore, the energy used needs to be inexpensive,
for many reasons—so that the worker’s salary goes farther; so that the
goods or services created are competitive in a world market; and so that
governments can gain adequate tax revenue from taxing energy products.
We don’t think of fossil fuel energy products as being a significant
source of tax revenue, but they very often are, especially for exporters
(Rodgers map of oil “government take” percentages).
Some
of the energy listed above is paid for by the employer; some is paid
for by the employee. This difference is irrelevant, since all are
equally essential. Some energy is omitted from the above list, but is
still very important. Energy to build roads, electric transmission
lines, schools, and health care centers is essential if the current
system is to be maintained. If energy prices rise, taxes and fees to pay
for basic services such as these will likely need to rise.
How “Growth” Began
For
most primates, such as chimpanzees and gorillas, the number of the
species fluctuates up and down within a range. Total population isn’t
very high. If human population followed that of other large primates,
there wouldn’t be more than a few million humans worldwide. They would
likely live in one geographical area.
How did humans venture out
of this mold? In my view, a likely way that humans were able to improve
their dominance over other animals and plants was through the controlled
use of fire, a skill they learned over one million years ago (Luke 2012).
Controlled use of fire could be used for many purposes, including
cooking food, providing heat in cool weather, and scaring away wild
animals.
The earliest use of fire was in some sense very
inexpensive. Dry sticks and leaves were close at hand. If humans used a
technique such as twirling one stick against another with the right
technique and the right kind of wood, such a fire could be made in less
than a minute (Hough 1890). Once humans had discovered how to make fire, they could it to leverage their meager muscular strength.
The
benefits of the controlled use of fire are perhaps not as obvious to us
as they would have been to the early users. When it became possible to
cook food, a much wider variety of potential foodstuffs could be eaten.
The nutrition from food was also better. There is even some evidence
that cooking food allowed the human body to evolve in the direction of
smaller chewing and digestive apparatus and a bigger brain (Wrangham 2009). A bigger brain would allow humans to outsmart their prey. (Dilworth 2010)
Cooking
food allowed humans to spend much less time chewing food than
previously—only one-tenth as much time according to one study (4.7% of
daily activity vs. 48% of daily activity) (Organ et al. 2011). The reduction in chewing time left more time other activities, such as making tools and clothing.
Humans
gradually increased their control over many additional energy sources.
Training dogs to help in hunting came very early. Humans learned to make
sailboats using wind energy. They learned to domesticate plants and
animals, so that they could provide more food energy in the location
where it was needed. Domesticated animals could also be used to pull
loads.
Humans learned to use wind mills and water mills made from
wood, and eventually learned to use coal, petroleum (also called oil),
natural gas, and uranium. The availability of fossil fuels vastly
increased our ability to make substances that require heating, including
metals, glass, and concrete. Prior to this time, wood had been used as
an energy source, leading to widespread deforestation.
With the
availability of metals, glass, and concrete in quantity, it became
possible to develop modern hydroelectric power plants and transmission
lines to transmit this electricity. It also became possible to build
railroads, steam-powered ships, better plows, and many other useful
devices.
Population rose dramatically after fossil fuels were
added, enabling better food production and transportation. This started
about 1800.
Figure
1. World population based on data from “Atlas of World History,”
McEvedy and Jones, Penguin Reference Books, 1978 and UN Population
Estimates.
All of these activities led to a very long
history of what we today might call economic growth. Prior to the
availability of fossil fuels, the majority of this growth was in
population, rather than a major change in living standards. (The
population was still very low compared to today.) In later years,
increased energy use was still associated with increased population, but
it was also associated with an increase in creature comforts—bigger
homes, better transportation, heating and cooling of homes, and greater
availability of services like education, medicine, and financial
services.
How Cheap Energy and Technology Combine to Lead to Economic Growth
Without
external energy, all we have is the energy from our own bodies. We can
perhaps leverage this energy a bit by picking up a stick and using it to
hit something, or by picking up a rock and throwing it. In total, this
leveraging of our own energy doesn’t get us very far—many animals do the
same thing. Such tools provide some leverage, but they are not quite
enough.
The next step up in leverage comes if we can find some
sort of external energy to use to supplement our own energy when making
goods and services. One example might be heat from a fire built with
sticks used for baking bread; another example might be energy from an
animal pulling a cart. This additional energy can’t take too much of (1)
our human energy, (2) resources from the ground, or (3) financial
capital, or we will have little to invest what we really want—technology
that gives us the many goods we use, and services such as education,
health care, and recreation.
The use of inexpensive energy led to a
positive feedback loop: the value of the goods and service produced was
sufficient to produce a profit when all costs were considered, thanks
to the inexpensive cost of the energy used. This profit allowed
additional investment, and contributed to further energy development and
further growth. This profit also often led to rising salaries. The
additional cheap energy use combined with greater technology produced
the impression that humans were becoming more “productive.”
For a
very long time, we were able to ramp up the amount of energy we used,
worldwide. There were many civilizations that collapsed along the way,
but in total, for all civilizations in the world combined, energy
consumption, population, and goods and services produced tended to rise
over time.
In the 1970s, we had our first experience with oil
limits. US oil production started dropping in 1971. The drop in oil
production set us up as easy prey for an oil embargo in 1973-1974, and
oil prices spiked. We got around this problem, and more high price
problems in the late 1970s by
- Starting work on new inexpensive oil production in the North Sea, Alaska, and Mexico.
- Adopting more fuel-efficient cars, already available in Japan.
- Switching from oil to nuclear or coal for electricity production.
- Cutting back on oil intensive activities, such as building new roads and doing heavy manufacturing in the United States.
The
economy eventually more or less recovered, but men’s wages stagnated,
and women found a need to join the workforce to maintain the standards
of living of their families. Oil prices dropped back, but not quite a
far as to prior level. The lack of energy intensive industries (powered
by cheap oil) likely contributed to the stagnation of wages for men.
Recently,
since about 2004, we have again been encountering high oil prices.
Unfortunately, the easy options to fix them are mostly gone. We have run
out of cheap energy options—tight oil from shale formations isn’t
cheap. Wages again are stagnating, even worse than before. The positive
feedback loop based on low energy prices that we had been experiencing
when oil prices were low isn’t working nearly as well, and economic
growth rates are falling.
The technical name for the problem we are running into with oil is diminishing marginal returns.
This represents a situation where more and more inputs are used in
extraction, but these additional inputs add very little more in the way
of the desired output, which is oil. Oil companies find that an
investment of a given amount, say $1,000 dollars, yields a much smaller
amount of oil than it used to in the past—often less than a fourth as
much. There are often more up-front expenses in drilling the wells, and
less certainty about the length of time that oil can be extracted from a
new well.
Oil that requires high up-front investment needs a high
price to justify its extraction. When consumers pay the high oil price,
the amount they have for discretionary goods drops. The feedback loop
starts working the wrong direction—in the direction of more layoffs, and
lower wages for those working. Companies, including oil companies, have
a harder time making a profit. They find outsourcing labor costs to
lower-cost parts of the world more attractive.
Can this Growth Continue Indefinitely?
Even
apart from the oil price problem, there are other reasons to think that
growth cannot continue indefinitely in a finite world. For one thing,
we are already running short of fresh water in many parts of the world,
including China, India and the Middle East. In addition, if population
continues to rise, we will need a way to feed all of these people—either
more arable land, or a way of getting more food per acre.
Pollution
is another issue. One type is acidification of oceans; another leads to
dead zones in oceans. Mercury pollution is a widespread problem. Fresh
water that is available is often very polluted. Excess carbon dioxide in
the atmosphere leads to concerns about climate change.
There is
also an issue with humans crowding out other species. In the past, there
have been five widespread die-offs of species, called “Mass
Extinctions.” Humans seem now to be causing a Sixth Mass Extinction.
Paleontologist Niles Eldredge describes the Sixth Mass Extinction as
follows:
- Phase One began when first humans began to disperse to different parts of the world about 100,000 years ago. [We were still hunter-gatherers at that point, but we killed off large species for food as we went.]
- Phase Two began about 10,000 years ago, when humans turned to agriculture.
According
to Eldredge, once we turned to agriculture, we stopped living within
local ecosystems. We converted land to produce only one or two crops,
and classified all unwanted species as “weeds”. Now with fossil fuels,
we are bringing our attack on other species to a new higher level. For
example, there is greater clearing of land for agriculture, overfishing,
and too much forest use by humans (Eldredge 2005).
In
many ways, the pattern of human population growth and growth of use of
resources by humans are like a cancer. Growth has to stop for one reason
or other—smothering other species, depletion of resources, or
pollution.
Many Competing Wrong Diagnoses of our Current Problem
The
problem we are running into now is not an easy one to figure out
because the problem crosses many disciplines. Is it a financial problem?
Or a climate change problem? Or an oil depletion problem? It is hard to
find individuals with knowledge across a range of fields.
There
is also a strong bias against really understanding the problem, if the
answer appears to be in the “very bad to truly awful” range. Politicians
want a problem that is easily solvable. So do sustainability folks, and
peak oil folks, and people writing academic papers. Those selling
newspapers want answers that will please their advertisers. Academic
book publishers want books that won’t scare potential buyers.
Another
issue is that nature works on a flow basis. All we have in a given year
in terms of resources is what we pull out in that year. If we use more
resources for one thing–extracting oil, or making solar panels, it
leaves less for other purposes. Consumers also work mostly from the
income from their current paychecks. Even if we come up with what looks
like wonderful solutions, in terms of an investment now for payback
later, nature and consumers aren’t very co-operative in producing them.
Consumers need ever-more debt, to make the solutions sort of work. If
one necessary resource–cheap oil–is in short supply, nature dictates
that other resource uses shrink, to work within available balances. So
there is more pressure toward collapse.
Virtually no one
understands our complex problem. As a result, we end up with all kinds
of stories about how we can fix our problem, none of which make sense:
“Humans
don’t need fossil fuels; we can just walk away.” – But how do we feed 7
billion people? How long would our forests last before they are used
for fuel?
“More wind and solar PV” – But these use fossil fuels now, and don’t fix oil prices.
“Climate
change is our only problem.”—Climate change needs to be considered in
conjunction with other limits, many of which are hitting very soon.
Maybe there is good news about climate, but it likely will be more than
offset by bad news from limits not considered in the model.
http://theenergycollective.com/gail-tverberg/293276/rising-energy-costs-lead-recession-eventually-collapse
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