Effects of human behavior on life of our planet

[From David Sussman, posted by Ira with his permission and based on his 12 November 2010 presentation to the Philosophy Club, The Villages, Fl, Click here to Download the Powerpoint presentation.]


The structure of the analysis contains essentially three components:

(1) The human condition,

(2) behavioral consequences deleterious to the future of life on Earth, and

(3) a view of the future.

The human condition derives essentially from our evolutionary history, all of us products of an unbroken string of survivors stretching back to the first glimmers of life from self-replicating molecules 3.5 billion years ago. As humans are one of countless species, extant and extinct, created by natural processes, there is no reason to believe that we, or any other, are endowed with freedom of choice. This is regarded as an illusion stemming from other features of the strategy honed for us by nature, e.g. consciousness and speech. Our strategy is enshrouded in myth, explained by Reg Morrison (Spirit in the Gene) as a necessity predicated on the need for emotional response to immediate threat rather than logical analysis. Another dimension of our ‘condition’, and linked inevitably to the others, is our propensity to expand our numbers much beyond what our rational faculties would inform us is sustainable and compatible with an extended tenure for us and other life forms on Earth.

Behavioral consequences - Of the wide array of possibilities that arise from our condition, essentially coalesced into our particular operational strategy, I have selected a few salient behavioral characteristics that I believe bear most strongly on prospects for the future of life:

• our failure to nurture so as to maintain natural identity and physical and mental health of every child on Earth, or to inculcate an appreciation of the tenets of democracy;
• stressing rights rather than responsibilities in social organization, leading to excesses as best described by Garrett Hardin’s “Tragedy of the Commons”;
• sex exploitation in its many manifestations – for the purposes of dominance, manipulation and economic advantage;
• the unholy alliance of religion and politics, each employing similar strategies for securing operatives’ aggrandizement;
• the divorce of science from philosophy, leaving its practitioners devoid of a framework that could more productively guide the nature and applications of their inquiries;
• our propensity to take confrontation beyond the brink to violence and mayhem;
• the practice of concentrating capital and other forces leading to inordinate disparity in the distribution of wealth and other life amenities.

What of the future? Is humanity at an evolutionary dead end? Certainly survival in civilized society is different from what would be dictated by nature “red in tooth and claw”. And although evolution proceeds at a snails pace, culture sweeps through like a zephyr. The absence of choice leaves it up to nature, the overseer of both evolution and culture, as well as conditions that we will confront in the future. Are we capable of predicting the future? Inherent uncertainty in physical processes that underlie all that we think and do, precludes prognostication. Societies, as any other complex system, are either fundamentally too complex for our “poor power” or subject to both subatomic (with macroscopic manifestations) and chaotic uncertainty.

David Sussman

NOTE: See earlier discussion related to David Sussman's presentation in a topic posted by Joel last week.

Earth Day 2010 = Gaia Optimizing Deity?

[Updated 27 April - Go to bottom of this Topic and click for neat, well-produced video spoof.]

On this 40th Earth Day, it seems Natural to reflect on Biologist and self-proclaimed atheist Richard Dawkins' words:

"...It is clear that here on Earth we are dealing with a generalized process for optimizing biological species, a process that works all over the planet, on all continents and islands, and at all times … if we wait another ten million years, a whole new set of species will be as well adapted to their ways of life as today’s species are to theirs. This is a recurrent, predictable, multiple phenomenon, not a piece of statistical luck recognized with hindsight." [Emphasis added, The GOD Delusion, p 139]

GOD = "General Optimizing Device" would seem to follow Naturally from the above statement.

The process of neo-Darwinian Evolution and Natural Selection is: OMNIPRESENT (“all continents and islands … all times”), OMNIPOTENT (“whole new set of species”) and OMNISCIENT (“as well adapted to their ways of life as today’s species”).

Lets kick it up a notch to:

GOD = "Gaia Optimizing Deity". Only something superior to and above individual biological life forms, including human life, could have the super-human powers described by Dawkins.

"Gaia" is the term used by James Lovelock (PhD scientist and inventor) to personify such a super-human force, the Greek "Goddess of the Earth" featured in a Nova PBS TV presentation reviewed by the NY Times. "Nova concerns itself with science rather than fiction, of course, and this segment skillfully reviews the subtle chemical and biological interactions that control the levels of carbon dioxide, oxygen, methane and other key gases in the earth's atmosphere. Dr. Lovelace [sic] presents his well-reasoned view that the existing proportions of gases in our atmosphere could only be maintained by the existence of life, and that in seeking life elsewhere in the universe, it is necessary only to look for similarly unstable mixtures of atmospheric gases."


Biological Organisms May Control Cloud Formation and Moderate Climate Change

Scientists at the Scripps Institution of Oceanography> sampled clouds in real time using aircraft. "By determining the chemical composition of the very cores of individual ice particles, they discovered that both mineral dust and, surprisingly, biological particles play a major role in the formation of clouds."

This opens the possibility that the biosphere could have evolved, over eons of climate change, the capability to moderate intense swings of climate by releasing biological chemicals that promote cloud formation during hot periods and releasing lower quantities during ice ages to reduce formation of clouds.

Possible Mechanism for Evolution of Biological Climate Moderation

The Sun was some 30% dimmer 3-4 billion years ago when biological life originated on Earth. Given a faint Sun, the Earth's surface temperatures must have been much colder than the coldest ice ages. Yet, for life to be viable, the surface temperatures had to be quite a bit warmer, within tens of degrees of current temperatures.

One explanation is that the Earth's atmosphere was far richer in CO2 and other carbon gasses when life originated. (~1% vs 0.04% now.) According to that theory, the carbon gasses would have promoted an intense "greenhouse" effect that kept the surface warm. Unfortunately for that explanation (but fortunately for us) it turns out that CO2 levels billions of years ago were much closer to current levels, so it was not the greenhouse effect!

The best explanation is that there were far fewer clouds billions of years ago. Since clouds are responsible for a net reduction in surface temperatures, their absence would have the opposite effect. But why would there be more clouds now, and why would they increase to moderate the effect of a brightening Sun?

Biological life originated and evolved starting about 3.5 billion years ago. As the Sun became progressively brighter, some life forms emitted chemicals that promoted cloud formation and thereby moderated the temperatures that otherwise would have risen in their area. Biological life that had a moderating influence on cloud formation is more "fit to the environment" (or , more properly, makes the environment more fit to life). Over the eons of evolution, biological life that had the power to moderate climate would spread at the expense of life that did not.

Quoting Dawkins again on the generalized optimizing process: "This is a recurrent, predictable, multiple phenomenon, not a piece of statistical luck recognized with hindsight."

But, Is the Gaia Sentient?

Well, how can you tell if an agent is sentient without being that agent?

[Added 10:30PM] The Gaia has given us an Earth Day present! Today, Arctic Sea Ice Extent has hit a high for the past eight years. Good news that may indicate that Global Warming is at bay, at least for a decade, and perhaps for more. See more details at Watts Up With That. Click image below for a larger version. I expect the ash clouds from the Iceland volcano to cause some additional cooling in the affected areas of North America and Europe for at least a month, perhaps more.



[Added 27 April] Turn up the sound and enjoy this well-produced video!

Ira Glickstein

Teaching Intelligent Design

What is the basis of "Scientific Intelligent Design"?



Intelligent Design (ID) is a teleological (purpose-driven) explanation of the origin and development of biological life on Earth. In its more recent "scientific" form, ID makes use of science-based arguments, mainly "irreducible complexity", to argue that some designer must have created the first biological cells because they could not have originated on their own.

Some ID proponents are prepared to believe that, after the origin of those first cells, something like neo-Darwinian evolution and natural selection took over and resulted in the wide diversity of life forms on Earth. However, they believe the evolutionary process is not without purpose. The intelligent designer had some purpose in mind when the initial biological cells were designed. Even if the various species were not designed per se, the designer of the original biological cells knew the laws of nature and how those cells would inevitably evolve into current-day species. Mainstream science is critiqued for believing advanced life forms evolved by undirected, blind chance and for no purpose at all. If there is no purpose what is the reason for life, for ethics? Why should we continue to live? See:http://www.intelligentdesignnetwork.org/NCBQ3_3HarrisCalvert.pdf and http://www.intelligentdesignnetwork.org/

What is the basis of Darwinian Evolution?



The basis of Darwinian evolution is that more complex life forms originate when a random mutation or crossover of genes occurs and the resultant life form happens to be both more complex and have a higher survival/reproduction rate than the less complex form. Darwinian evolution and natural selection are central to mainstream science and all standard science courses

What is the basis of "Irreducible Complexity"?



"Irreducible complexity" argues there is no viable life form below that of the most basic biological cell. Therefore, there is no way that that first biological cell could have evolved from something simpler. Thus, there must be some "intelligent cause" rather than the "undirected process" of evolution, at least for the origin of the most basic biological cells. ID proponents demand scientific study of what they call "origins science". The want ID to be included in science classes.

Why not teach both Darwinian and ID explanations in science classes?



ID rejects any purposeless explanation, at least for the initial origin of the most basic biological cells. ID concludes there must have been some "intelligent designer" and the clear implication is an intelligent supernatural being (e.g., "God"). Mainstream scientists reject ID as a religious belief that has no place in a science class.

I accept mainstream science ...

I totally accept the mainstream scientific explantion of both the origin and evolution of life on Earth. Although no scientific experiment has completely duplicated the process of origin of life, I accept the current explation that traces origins from random mixing and chemical reactions in self-reproducing autocatylitic cycles that happened to be confined in porous rock or clay or lipid (fat) molecules. Autocatylitic cycles have been demonstrated in the laboratory.

As a result of the autocatylitic cycle process, some primitive type of self-reproducing RNA originated and that lead to the origin of RNA's first cousin, self-reproducing DNA. Given RNA and DNA, even in their primitive forms, it is possible for a life form that is not yet a biological cell to survive and reproduce in porous rock or clay or lipid molecules. RNA codes for the production of proteins and this must have lead to the first biological cells that produced their own membranes and were thus freed of dependence upon porous materials. At that point, standard Darwinian evolution and natural selection took over.

but ... I favor mention of ID in science classes

Although you might expect me to oppose teaching ID in science class, I think it deserves some mention. Why ???

1) According to Gallup polls, over 40% of our fellow Americans believe God created human beings pretty much in their current form as recently as 10,000 years ago. An additional nearly 40% believe God guided evolution over a longer period. That means four out of five Americans accept God as Creator, Designer, and/or Guider. Fewer than one in seven accept the mainstream scientific explantion that God had no part in the process. Hard as this is to believe, it is a fact to be contended with. "Head in the sand" won't work!

2) What better place than a science class to demonstrate use of the scientific method to evaluate ID vs Darwin? Give the best possible arguments for ID, using examples directly from their textbooks. Do the same for Darwin and then ask the hard questions. For example:

• If ID is true, the first biological cells on Earth were designed and brought here by alien space travelers or by God.

1. If the former, how did the alien space travelers originate? Perhaps they evolved through a Darwinian process on some other planet? If so, Darwin got the process right but the planet wrong! Perhaps meteors harboring live biological cells were flying through space and seeding life on various planets including Earth? How did life originate on the meteors? If not by some Darwinian process, life always existed on those meteors! Does that make any sense?


2. If the latter, how did God come into existence? Did God design and create Himself or was it a Super-God who created Him, and so on with Super-Duper-Gods all the way up? You say God always existed? Does that make any sense?

3) Even though flogiston was a discredited idea, I learned about it in science class! It was a great lesson in the scientific method! Early scientists weighed a piece of wood, burned it, and then weighed the ashes. Sure enough, the ashes weighed less than the original wood, which proved that the fire and heat was due to the flogiston leaving the wood. QED. Then, some smarter scientist repeated the experiment in a closed chamber. The results were just the opposite. Oxygen from the air combined with the carbon from the wood producing energy and carbon dioxide, which is why the ashes plus the smoke weighed more than the original wood.
4) Same story about the discredited idea the Sun and stars rotated about the Earth or that maggots were generated spontaneously on dead meat or that alchemists could change lead into gold and all those other early science myths. The best way to demonstrate the scientific method is to ... uh ... demonstrate the scientfic method!
5) Given the Gallup poll results, it is highly likely a student will be exposed to "scientific" ID by his or her family, friends, neighbors, religious leaders, and even some politicos running for president of the USA. Shouldn't they understand what is behind the ID concept and know the pros and cons? We push sex education in the schools to counteract information students are bound to pick up on the streets. Isn't understanding Darwinism as important?
6) Any responsible social sciences curriculum should include information about alternatives to democracy, including discredited forms of government such as monarchies, theocracies, fascism, communism, and so on. In each case, a fair presentation should be made of the arguments for that form of government, historical examples of widespread prevalence of that form, and examples of problems.
7) Darwinism has nothing to fear from ID! The arguments for a naturalistic chemical origin of life (autocatalytic cycles, RNA, DNA, ...) and neo-Darwinian evolution and natural selection are very strong. Scientists have been studying the laws of nature and properties of energy and matter for quite some time and are always discovering new things about them. We believe the laws of nature are Universal, the same in every corner of the Universe. We believe those laws and material properties guarantee that, over billions of years and with billions of stars and planets, life was bound to come into existence without any external intelligent designer. So, it is quite natural and totally expected that life came into existence, and here we are on Earth to prove it. Where did those complex laws of nature and matter/energy come from? How did they originate? Well, they always existed! (OOPS)

Ira Glickstein