When growth stops sustainable development
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A discussion of sustainable development, based on the excellent book
Beyond Growth by Herman Daly.
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reprinted from Rachel's Environment & Health Weekly |
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ustainable development means, first, setting
physical limits on the "throughput" of the human economy. Throughput
means all the materials and energy flowing through the economy all the things
we make and use, and all the energy required to do so. Another phrase for
"throughput" is "total consumption," which is total
human population multiplied by per-capita consumption.
The total throughput of the human
economy must be kept small enough to avoid exceeding two physical limits
of the ecosystem: its capacity to regenerate itself, and its capacity to
absorb our wastes. Each year now, scientists report new evidence that the
human economy has exceeded both of these ecosystem limits.
For example, nature creates (regenerates)
new topsoil each year, but in much of the world (particularly in the United
States) humans are destroying topsoil faster than nature can create it.2
Loss of topsoil reduces our future farming capacity in a fundamental way.
Topsoil destroyed today is topsoil taken from our children and grandchildren.
Pesticides provide an example of
humans producing wastes faster than nature can absorb them. If nature could
absorb pesticide residues as fast as humans created them, then there would
be no buildup of toxic residues. But there has been a measurable buildup
of pesticides at the north and south poles, at the bottom of the deepest
oceans, in the drinking water of much of the midwestern United States, and
in the breast milk of women worldwide. We have clearly exceeded nature's
capacity to absorb pesticide wastes, thus denying our children their rightful
share of nature's detoxification capacity.
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The outer limits
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In sum, there really are "limits to growth" and
we have already exceeded some of those limits. This means that, at some
point, continued economic growth (growth of throughout) will create bads
faster than it creates goods (an economist would say "marginal costs
will exceed marginal benefits"). Daly1 (pg. 40) argues, for example,
that the U.S. chemical industry may have already passed the point at which
its toxic discharges are costing society more than the benefits provided
by its products. If this were the case, then society would receive net benefits
by shrinking the chemical industry instead of promoting its growth.
Unfortunately, we have no way of
measuring whether our economy has passed the point at which costs have begun
to exceed benefits because, in our national accounting system (in which
we measure "gross domestic product"), we count all production
of goods and services as "goods." In tallying up gross domestic
product (GDP) we never subtract any bads. Chemicals are counted as goods
and the products they allow us to make are counted as goods. This makes
sense.
But when our chemical factories produce
chemical waste dumps that must be cleaned up at huge public expense, those
costs are counted as "goods" too, instead of being subtracted
as bads. If a few hundred or a few thousand children get cancer from exposure
to chemical wastes, their hospitalization, their radiation treatments, their
chemotherapy, and their funeral expenses are all counted as "goods"
in our total GDP. If their parents sue, all the resulting court expenses
are counted as goods, not bads. In sum, the nation's brightest economists
maintain our national accounting system with a calculator that has a plus
key but no minus key.3
Therefore we have no way of knowing
whether the costs of economic growth have exceeded the benefits. The nation's
economists (and politicians and business leaders) simply assume that if
GDP is rising, our standard of living is rising too. But, as the song goes,
it ain't necessarily so.
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Steady as she goes
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Historically, growth is an aberration; a steady state economy
is the norm. Only during the past 500 years has growth begun to seem like
the normal condition for human economies. The physical limits to growth
(which we are now perceiving because we have exceeded some of them) require
us to return to the steady state sooner or later. If we do so by choice,
we may be able to guide the process and achieve a steady-state economy with
a reasonable approximation of the "good life" for most people,
world without end.4 On the other hand, if we continue to blindly accept
the ideology that growth is good, then natural limits will reduce our numbers
with an ecological meat axe and the suffering will be immense.
Why do we have so much trouble imagining
a no-growth economy?
Daly believes there is one central
reason: because a steady-state economy, one that is no longer physically
growing, will force us to confront the problem of inequality, which is another
name for the problem of poverty. So long as the total economic pie is growing
we can say, "The poor will be lifted out of poverty by growth, so we
need not take any special steps to alleviate their condition in fact, we
hardly need to think about them at all because the market will take care
of them."
In a steady-state economy, we will
have to decide what is a fair distribution of the benefits of the economy
because, in the steady state, as the rich get richer the poor must get poorer.
In this situation, the only way to make sure that a fair share is available
for everyone (whatever society decides "a fair share" means) is
to set a limit on how much the powerful and the predatory can take for themselves.
Daly says simply, "In a steady state, if the rich get richer the poor
must get poorer, not only relatively but absolutely. If the total [throughput
of the economy] is limited there must be a maximum limit on individual income."
Daly believes this is the key reason
why we refuse to confront limits to growth: we cling to the path of unsustainable
growth so that we will not have to think about limiting inequality. Establishing
the principle of limited inequality is a necessary (but not sufficient)
condition for achieving a modern steady state. He argues that the precise
range of inequality that we allow is not as important as establishing the
principle that inequality should be limited.
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Setting bounds
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If inequality is to be limited, this implies that there
will be a maximum allowable income and a minimum income. (These standards
would have to be developed within each society because needs are culturally
determined.) Daly argues that the minimum income "would be some culturally
defined amount sufficient for food, clothing, shelter, and basic health
and education." The maximum income might be four times as great as
the minimum (which is what Plato advocated), or it could be 10 or 20 times
as great. The exact number isn't terribly important. The point is that there
must be a limit on inequality the precise limit can be worked out in practice.
(The overarching goal would be to provide sufficient incentive so that all
necessary jobs are filled voluntarily by qualified people.)
Daly argues that limiting inequality
(in a steady-state economy) is a way to achieve 3 things:
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1) It is a way to keep the rich from leaning too heavily
on the poor;
2) It is a way to keep the present generation from leaning
too heavily on future generations;
3) It is a way to prevent humans from "leaning too
heavily on other creatures whose habitats must disappear as we convert
more and more of the finite ecosystem into a source for raw materials,
a sink for waste, or living space for humans and warehouses for our artifacts."
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In addition to the matter of fairness
(the meaning of which each society or culture must decide for itself), in
a steady-state economy we would need to limit inequality for another reason
as well: to limit total human consumption, which is total population multiplied
by per-capita consumption. It is total human consumption that stresses the
ecosystem. |
Quantity vs. quality
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Because total consumption has two parts (human numbers
and per-capita consumption), to limit total consumption, we would need to
limit inequality and limit total human numbers. In a steady-state
economy (one whose total size is established by the Earth's limits), the
more people there are, the lower their average standard of living must be.
Controlling growth requires us to limit both human consumption and
human population. Both limits are essential if we aim to control
the total size (throughput) of the global economy.
In recent decades, we have invented
several technological fixes aimed at circumventing the natural limits of
ecosystems, so that growth can continue. The "green revolution"
tried to speed up the growth rates of the edible portions of wheat and rice
plants5 but these changes were achieved at the expense of stability, resilience
and resistance to disease. The latest technical fix is genetically engineered
crops. The hidden costs of this latest agricultural gimmick have yet to
be measured, but we can be sure that they will become apparent as time passes.
Daly says, "It is for now certainly better for us to slow down our
own biological growth rate than to attempt to speed up the growth rates
of all the species we depend upon."
It seems logical that we in the northern
hemisphere must confront (and achieve) the limits to growth first, because
it is our past growth that is stressing the world's ecosystem, squeezing
out the opportunity for others to claim their rightful share of the Creator's
bounty. Now we must relinquish some of what we have so that others may thrive.
But, in fairness, everyone has an obligation to control their numbers as
their consumption rises.
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The price of free trade
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Individual countries will find it more difficult to limit
their consumption as the "free trade" ideology is imposed on them
by powerful traders like the United States. "Free trade" hides
the ecological costs of consumption. If Americans are doing the consuming
but the related ecological limits are being exceeded in Mexico or in Indonesia,
Americans can feel no incentive to reduce their consumption. Free trade
even makes it difficult to keep relevant accounts because benefits are being
enjoyed in one locale while costs are being created in another, thousands
of miles apart.
There is considerable evidence that
free trade doctrines are increasing inequalities within and between countries.
As Herman Daly says, free trade will bring with it "a further writing
off of the laboring class in this country, an increasing disdain toward
uneducated and rural people by the corporate and university elite, and an
increasing devotion by the former to the one thing about themselves that
at least vaguely concerns the latter their growing arsenal of guns."
Within countries, great inequality
creates civil conflict. Between countries, in a full world, high rates of
consumption create international conflict. To the extent that free trade
makes nations less able to control their rates of consumption, to that degree
it will promote war within and between countries. To promote peace, nations
need to become more self-sufficient and to consume less.
We have said before and we say again:
We know of only one organization committed to tackling every part of the
"sustainable development" problem: Sustainable Amer-ica. We urge
all our readers to join and support Sustainable America. This is important.
Please do it. Telephone (212) 269-9550; fax (212) 269-9557; or http://www
.sanetwork.org.
Happy new year! 
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Reprinted from Rachel's Environment & Health Weekly, with permission. Subscription information may be obtained by writing to: Environmental Research Foundation, PO Box 5036, Annapolis, MD 21403-7036. Peter Montague (National Writers Union, UAW Local 1981/AFL-CIO). Fax (410) 263-8944; Internet: erf rachel.org. |
References
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1. Herman E. Daly, Beyond Growth (Boston: Beacon
Press, 1996). ISBN 0-8070-4708-2.
2. Gary Hardner, Shrinking Fields: Cropland Loss In
A World Of Eight Billion (Washington, D.C.: World-watch Institute, 1996).
ISBN 1-878071-33-5. Worldwatch can be reached at 1776 Massachusetts Avenue,
Washington, D.C. 20036-1904. Telephone: (202) 452-1992; fax: (202) 296-7365.
[3] Lincoln Anderson, "Gross Domestic Product,"
in David R. Henderson, editor, The Fortune Encyclopedia Of Economics
(New York: Warner Books, 1993), pgs. 203-207. ISBN 0-446-51637-6.
[4] Daly never precisely defines the "good life"
but on pg. 14 he says, "most would agree with Malthus that it should
be such as to permit one to have a glass of wine and a piece of meat with
one's dinner. Even if one is a teetotaler or a vegetarian that level of
affluence is desirable, and would serve by itself to rule out populations
at or above today's level."
[5] Vandana Shiva, Staying Alive; Women, Ecology, And
Development (London, England, and Atlantic Highlands, New Jersey, USA:
Zed Books, 1989). ISBN 0-86232-823-3. |