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343 lines
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Newsgroups: alt.destroy.the.earth
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From: mporter@nyx.cs.du.edu (Mitchell Porter)
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Subject: Carbonist Manifesto
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Message-ID: <1992Dec1.052005.17871@mnemosyne.cs.du.edu>
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Summary: CO2 good, O2 bad
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Organization: Nyx, Public Access Unix @ U. of Denver Math/CS dept.
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Date: Tue, 1 Dec 92 05:20:05 GMT
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Lines: 338
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snarfed from the Extropians mailing list (Extropians-request@gnu.ai.mit.edu)
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The Consequences of Gaia
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- or -
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The Carbonist Manifesto
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Copyright (C) 1992 Jeff Berkowitz (jjb@sequent.com)
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Revision 1 of 30 Nov 92
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Permission to redistribute this work is granted
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provided that (1) it's unmodified, (2) it's all
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there ("in entirety"), and (3) my name and the
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copyright notice are still attached. The fact
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that Sequent's name appears in my e-mail address
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has no more significance than if I gave you my
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work phone number; it's just a way to reach me,
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not an endorsement.
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This essay describes some philosophical, ethical, and cosmological
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implications of the Gaia hypothesis. Although loosely grounded in
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recent research in ecology and paleoclimatology, this is clearly an
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essay and not a scientific paper. It is also distinctly tongue in
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cheek, but the author has spent some serious moments wondering
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whether the belief system outlined below is any more unreasonable
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than certain "mainstream" viewpoints.
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* * * *
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Over the last few years, we've become familiar with the notion that
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the biosphere is a dynamic, self-regulating system. In fact, an even
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stronger assertion can be made: the biosphere, in its present oxygen-
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rich form, is "a kind of superorganism that in its entirety maintains
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the conditions that best suit life on earth." [1] This formulation,
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known as the Gaia Hypothesis, was originally advanced by naturalists
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James Lovelock and Lynn Margulis (novelist William Golding suggested
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the name.)
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A key point in the Gaia hypothesis concerns the stability of the
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carbon cycle: that the level of atmospheric CO2 has been maintained
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within relatively narrow limits for hundreds of millions of years.
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This point is critical because the temperature of the biosphere
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is largely controlled by the quantities of greenhouse gases
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(primarily CO2) in the atmosphere. Various geophysical and
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biological processes cooperate to lower the amount of free CO2
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when the biosphere warms, and release CO2 when it cools. Thus
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the assertion that CO2 has remained relatively constant is also
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an assertion that the temperature has remained within relatively
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narrow limits: at no time in the last billion years has the Earth
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been a pressure cooker like Venus, or a snowball like Mars.
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This essay contends that over geological time periods (in particular,
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over the last 500 million years) the amount of available carbon in the
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biospheric carbon cycle has slowly decreased. This decrease has been
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driven by long term processes that remove CO2 from the atmosphere and
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deposit it in rocks. Plants, for example, capture free carbon in the
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molecules making up their tissues. As the plants die, their carbon
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sometimes leaves the dynamic biological domain of the "carbon cycle"
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and enters the geophysical domain as "hydrocarbon deposits" (coal,
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oil, and seafloor sediments.)
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Various pieces of indirect evidence exist for this slow decline in the
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CO2 content of the atmosphere. Numerous plant species, for example,
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thrive when subjected to an atmosphere lower in oxygen and higher in
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CO2 than the current atmosphere of Earth. It is natural to suppose
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that this beneficial effect is a holdover from the bygone era in which
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the photosynthetic "apparatus" of these plants evolved; their initial
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evolutionary "best fit" has slowly become a "misfit" due to decreasing
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levels of atmospheric CO2 across intervening megalenia. Some direct
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evidence of CO2 decrease also exists in the form of ice cores [1, p 42]
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although it covers a much shorter time scale.
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It is true that several arguments for the "essential stability" of the
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atmospheric CO2 level exist, in addition to well-understood mechanisms
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that "reverse the process" by removing carbon from the geophysical
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domain and returning it to the biosphere (that is, the domains are not
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truly separate.) It has been widely observed in the literature that
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CO2 levels could never have _fallen_ to less than one-third of their
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current value, nor could O2 levels have _risen_ significantly from
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their current values, without deadly consequences for life [2].
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The author finds these arguments too weak to deflect the main thrust
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of this essay. None of the data presented in Garrels et al [2] appear
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to rule out the possibility of somewhat higher atmospheric CO2 in ages
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past. In fact, their discussion of the carbon cycle gives short shrift
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to "reservior five" - organic carbon locked up in sediment. It is the
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relationship between humankind and this crucial reservior five that we
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will now continue to explore.
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As we've shown, conventional reasoning links the general stability of
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the carbon cycle to the general stability of biospheric temperature.
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This same reasoning also serves to link the slow decrease in CO2 to an
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equally slow (yet systematic) cooling of the biosphere. The Gaian
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temperature "equilibrium" is not, in fact, stable. Across geological
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eons, the Gaian feedback system achieves not stability, but rather a
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slow cooling. Various evidence for this cooling trend exists [5].
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Of course, the Gaian system is quite robust - as evidenced by its
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repeated recovery from the effects of barrages of big rocks from
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outer space. As Gaia ages, however, it is faced with the threat
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of a calamity worse than the impact of a dinosaur killer. This is
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the threat of "cold equilibrium", more colorfully called "the White
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Earth scenario."
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The White Earth scenario is part of the dirty laundry of the climate
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modelling community. As noted in Gleick's "Chaos: Making a New
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Science" [6], some seemingly reasonable (although simple) climate
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models suffer from an odd characteristic of falling into a state in
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which much of Gaia's free water is locked up in snow and ice; the
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surface albedo of the planet is high; and no obvious mechanism for
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increasing atmospheric greenhouse gas content or otherwise warming
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the planet presents itself. Since this state does not seem to
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correspond to anything in the historical record of the Earth, it
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is regarded as anomalous and incorrect.
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I suggest that we take take a truly novel approach to these seemingly
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valid models that drop into the White Earth state: let's presume that
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they are valid, and that they are telling us something important. We
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are at risk of "cold equilibrium" in the near geological term.
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The ability of the paleoclimatological community to accumulate the
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data leading to this conclusion and then avoid the conclusion itself
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is quite astonishing. One paleoclimatologist [4] has the audacity to
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draw a graph of Gaian temperature that trends smoothly downward for
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many millions of years, but is suddenly consumed by a series of sharp
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vertical excursions ("wiggles") over the past few hundred thousand.
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It's similar to the graph of a coin which rolls slowly around in a
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large circle, then rattles rapidly around in an oscillating spiral
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for a few moments before coming to rest in an equilibrium state,
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stable and dead - Gaia converges on the White Earth.
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Now let's take a step back from this impending frozen death for a
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moment. The key to the Gaian system is that it is *self-adjusting*.
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As observers who have only recently had our eyes opened to this
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wonderful concept, the Gaian model, we cannot hope to appreciate
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the myriad ways this all-encompassing system might find to regulate
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itself - to adapt to conditions and to maintain the equilibrium
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necessary for life. We must not underestimate the ability of the
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Gaian organism to evolve temporary organelles designed to deal
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with crisis.
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The last 100,000 years have seen some of the coldest times in the
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500 million that have elapsed since the Ordovician period. These
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100,000 years form less than 1/1000th of the intervening 500 million
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years.
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Oddly, they're the same 100,000 years that Homo Sapiens Sapiens has
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existed on Earth.
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Clearly, the biosphere has reached a point of crisis. The relatively
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stable processes of self-regulation that have worked for the past
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hundreds of millions of years have reached the limit of their ability
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to correct.
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In response to the impending crisis, Gaia evolved a solution. At the
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edges of the ice sheets that flowed down over the northern hemisphere
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during the last ice age, Gaia brought it to fruition: a short term
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corrective process designed to restore the natural balance of free
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carbon dioxide in the biosphere.
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Man.
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Yes, Man. Not the destroyer, the pillager, the environmental
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rapist of the popular lore; an utterly different view of Man the
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restorer, the savior, the solution to an environmental crisis more
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dangerous to the biosphere than even the giant stone that ended the
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age of dinosaurs. Man, whose only purpose in the Gaian system is
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to extract carbon from the rocks and put it back in the atmosphere
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where it belongs.
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It is not far-fetched to suggest that the evolution of mankind is
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an adaptive reaction. Organisms under stress are known to exhibit
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all manner of extraordinary behaviors. It is likely that
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Levenson's "one last coincidence" [1, p 56] is not a coincidence
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at all -
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From 1500 to 1850, throughout the Little Ice Age, the
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nations of Europe expanded in population, power, techno-
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logical competence, military strength, economic endeavors,
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in world rule - in virtually every measure of the vigor
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of a civilization.
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No, it is not a coincidence at all. It is, quite literally, our
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destiny; that is why we are so well equipped to succeed and expand
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our CO2-returning practices during periods of intense cold.
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The climatological community has come close to the point:
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Within a few centuries, we [human beings] are returning
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to the atmosphere and oceans the concentrated organic
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carbon stored in the sedimentary rocks over hundreds of
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millions of years [3].
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But as scientists, the community lacked the zeal to make that
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final, fundamental leap from observation to motive - the observation
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that this is not merely an unanticipated side effect of intelligence,
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but the very reason for its existence.
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Post-Gaian Environmental Ethics
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Given this recognition of mankind's role in the Gaian system, it
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is possible to construct a consistent system of environmental ethics
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that might be called "Carbonism."
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- Carbonists hold viewpoints that differ significantly from widely
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accepted environmental viewpoints, but Carbonists are not wanton
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destroyers of the environment. Carbonists do not favor poisoning
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the environment with long-lived toxins such as heavy metals or
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radioactive nucleotides, the accumulation of solid waste, or any
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other practice that does not contribute the the increase of CO2
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in the biosphere.
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Carbonists do hold, however, that other concerns are outweighed
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by the prospect of even a small increase in the necessary CO2 in
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Gaia's thinning veil.
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- Anything that has the direct effect of taking carbon from the
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geophysical reservior and returning it to the atmosphere is good.
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- Burning coal and oil for heating or to produce electric power
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are the greatest goods. Temporary particulate pollution of the
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atmosphere associated with these practices are of no consequence.
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- Automobiles are very good. Automobiles contribute other
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greenhouse gases, in addition to CO2, all at a minimal cost
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in annoying particulate pollution.
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- Burning wood is good. Logging is good. Slash-and-burn
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agriculture is good, particularly when it is done to raise
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ruminants (cud-chewing animals) which themselves contribute
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nontrivial quantities of greenhouse gases to the atmosphere.
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- Eating red meat is good. Consumption of red meat has an amazing
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ability to act as an economic incentive for slash-and-burn
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agriculture and the cultivation of ruminants in the tropical
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regions of the world.
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- Hydroelectric and Nuclear power are bad. They replace beneficial
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coal and oil burning. Dams are also harmful to fish, and harming
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fish has no evident CO2 benefit - Again, Carbonists are not wanton
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destroyers of the environment.
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Aside from its unfortunate tendency to substitute for coal and oil
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burning, nuclear power is fairly neutral. This reflects my personal
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viewpoint that the nuclear economy is unlikely to result in
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significantly poisoning the environment over time. Being anti-
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nuclear is the appropriate Carbonist viewpoint no matter what your
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feelings about the safety of nuclear power. Nuclear safety is a
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non-issue for Carbonists.
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- Natural gas is not good, although it is not as bad as hydroelectric
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power (it does add small amounts of certain greenhouse gases to the
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atmosphere.) In most cases, however, natural gas substitutes for
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the significantly more beneficial practices of burning coal or oil,
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and so should be avoided.
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- Air pollution is good, particularly when it kills large areas
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of forest (Central Europe, California, etc.) These dead trees
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are far more likely to end up rotting and burning (and hence
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contributing to atmospheric CO2) than to end up in the ground.
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The Longer Term and the Meaning of Life
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A short term consequence of the restoration of a proper CO2 balance
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to the atmosphere will be a radical drop in the number of species
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within the Gaian system. This holocaust will be caused by the
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inability of most species to adapt to the rapid shift in climate,
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non-CO2 pollution occurring as a side effect of CO2 boosting, and
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related effects.
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The loss of speciation might well approach the worst of the dinosaur
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killer episodes in scope - perhaps 75% or more of Gaia's individual
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species will disappear in a period of only a few centuries.
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In the longer term, what of it? It's happened before, and it will
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happen again. The Gaian system has a proven ability to recover
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from loss of speciation. The destruction of 75% of Gaia's species
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is a routine event of no consequence; the impending White Earth
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Catastrophy offers the prospect of the death of Gaia itself - a
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multibillion-year-old organism of unimaginable richness and variety.
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Finally, it is worth noting that Carbonism speaks directly to the
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fundamental questions of human existence in a way that is both simple
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and profound. Carbonism holds that neither individual human life
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nor any achievement of humanity, other than the liberation of free
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carbon, has any significance whatsoever. Only the collective
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behavior of the human species is significant to Gaia, and in a
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few centuries (when the carbon balance has been restored) Gaia's
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need for humanity will be at an end.
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Notes
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-----
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Mark Sweiger (sweiger@sequent.com) suggested the name "Carbonism."
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Reviewers of the document and victims of my lunchtime rants have
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included my wife Sylvia and numerous long-suffering engineers
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at Sequent.
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References
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----------
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[1] Levenson, T. "Ice Time: Climate, Science, and Life on Earth."
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Harper and Row, 1989, p 10 and others.
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[2] Garrels, Lerman, Mackenzie, "Controls of Atmospheric O2 and CO2
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Past, Present, and Future." In "Climates Past and Present",
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Skinner, B Ed. William Kaufman Inc, 1981.
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[3] Baes, Goeller, Olson, Rotty, "Carbon Dioxide and Climate: The
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Uncontrolled Experiment." In "Climates Past and Present",
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Skinner, B ed. William Kaufman Inc, 1981.
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[4] Butzer, K. "Environment and Archeology. An Ecological Approach
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to Prehistory", Second Edition. Aldine Athertone 1971, p 18.
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[5] Hecht, A. "Paleoclimate Analysis and Modelling" John Wiley &
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Sons, 1985, p 402.
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[6] Gleick, "Chaos: Making a New Science", p 170. I've also
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exchanged some email with members of the community, one of
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whom indicated that explaining why this has never really
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happened on earth had "the status of a cottage industry"
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for a time.
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Do not remove the checksum endmarker that follows.
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ENgaiaD
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