Razor-Thin Surface Films
Earth’s atmosphere, oceans, and seas
This presentation is a courtesy of
The Wecskaop Project
What Every Citizen Should Know About Our Planet
Copyright 2011, The Wecskaop Project.All rights reserved.
It is entirely free for non-commercial use by scientists, students, and educators anywhere in the world
Is our planet fragile or robust?
If the functioning of natural systems is robustand if the earth's water, seas, and atmosphere are immense
then pollution and other human abuses might be
viewed as relatively minor insults to an otherwise robust
and pristine system
If we assume that the earth and its atmosphere and seas
are so immense
as to be beyond harm from human activities,
then we may treat these criticalsystems with complacency
But is such a worldview justified?
or do earth’s atmosphere and seas simply SEEM immense as a result of our own diminutive size?
As a planet, earth has several characteristics that allow life as we know it to exist
First, earth has immense quantities of water, so that we could call ourselves “The Water Planet"
Compared to other known planets, for example, earth has immense quantities of water
Approximately 77% of its surface is covered with some
form of water
(such as oceans, lakes,glaciers, and snow)
Secondly, it orbits the sun at a distance that allows most of its water to exist in its liquid state
If we were a little further from the sun, all our water would
freeze and exist as ice
If we were a little closer to the sun, our
water would exist primarily in its gaseous state
The Pacific Ocean alone, for example, covers more of the
earth's surface than all of our land masses combined
In addition, water covers 60% of the northern hemisphere and approximately
80% of the southern hemisphere
Furthermore, if we were to use all earth's mountains and land masses to fill in the deepest parts of the sea,
we would end up with no land at all
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Instead, earth would be covered with a layer of water 2.5 kilometers deep
In addition to these immense reservoirs of water, earth also has hidden reservoirs of water
Its atmosphere is filled with clouds, rain, water vapor, fog, and humidity
Our farms and cities rely on dwindling
underground aquifers containing fossil water
that fell as rain thousands of years ago
And even the cells, tissues, and bodies of
living things constitute rich reservoirs of water
Living cells, for example, are up to 98% salt water
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In these respects, then, we can think of the earth as an "Unlikely Planet”
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In reality, however, this seeming enormity and abundance is simply an illusion
In one way, therefore, the numbers cited so
farunderscore an
abundance of water
Because as living organisms, each of us is so tiny compared to the size of our planet
that earth's oceans only seem large if they are compared to our own diminutive body size
If we assess earth's oceans, however, as simply a surface featureof our planet, an entirely different perspective emerges
Mathematically speaking, 99.94% of our planetconsists of its crust, mantle, and its molten interior
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The thin layer of water that we refer to as an ocean
exists only as an inexpressibly thin and precarious surface filmthat is only 6/100 ths of 1% as thick as the earth itself
See appendix twoFor supporting mathematics
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To proportionally illustrate such a depth to scale on a classroom globe, we would need a thin film of water
approximately 12/1000 ths of one inch deep
to correctly depict the proportionaldepth of the earth's oceans
If we were to wipe a wet paper towelacross a twenty-inch globe
to properly characterize the depth of earth's oceans
the film it leaves behindwould be too deep
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Thus viewed from a planetary perspective, our oceans exist as a thin and precarious surface film with greater
vulnerability than we might intuitively suppose
Thus, the seeming immensity of our oceans is actually an illusion
for we have seen that, in planetary terms, our oceans are THINsurface films that are just 6/100ths of 1% as thick as the earth itself
See appendix two forsupporting mathematics
Earth’s Atmosphereas another thin and fragile surface film
Part Two
It turns out that our ocean of air, earth's atmosphere, can be viewed in a similar way
Part
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If we analyze the proportional depth of earth's atmosphere,
we find that earth’s“ocean” of air
is also little more than another thin and
fragile film
Astronauts and cosmonauts, while taking photographs from
space, have likened earth’s atmosphere
to a single layer of skinon an onion
And this onion-skin-thin surface film of air may exhibit far greater vulnerability
than we commonly imagine
Seen from this perspective, our collective individual impacts
could contribute seriously topotentially-calamitous outcomes
The fact that earth’s atmosphereand oceans are razor-thin surface films
requires us to consider the implications of our
current worldwide levels
of pollution, disruption, and environmental damage
What outbreaks of dinoflagellate ‘red-tide’
in marine environments may tell us about ourselves
Part Three
In the ocean, one-celled dinoflagellates such as Karenia brevis release small amounts of
toxininto their surroundings
During such outbreaks of “red-tide,” a one-liter water sample cancontain 1,000,000 or more dinoflagellate cells per liter
One of the most striking characteristics of ‘red-tide’ outbreaks
is that, taken together, all one million dinoflagellate cells per
liter in a red-tide outbreak
physically-occupy less than2/1000 ths of 1%
of the one-liter samplein which they reside
See appendix onefor supporting mathematics
What the white dot in this image shows most dramatically
is one of earth’s classical real-world examples of population-
environment calamities
that routinely take place in environments that visually
appear to be
ALMOST entirely EMPTY
What the white dot in this image shows most dramatically
is one of earth’s classical real-world examples of population-
environment calamities
In addition, dinoflagellate red-tides are one of nature’s quintessential
examples of calamities
that arise from population explosions accompanied by the release of wastes
Dinoflagellate red-tide calamities, however, arise from their release of
cellular and metabolic wastesinto their surroundings
Except, of course, our own species supplements
its biological and cellular wastes with a daily worldwide avalanche of
industrial and societal wastes
Because our own species also releases wastes into its surroundings,
we may be following a trajectory
that is provocatively similar to that ofan outbreak of dinoflagellate red-tide
So that, from at least one point of
view, we may actually be on a trajectory that is considerably worse
than that of the dinoflagellates
and multiple orders ofmagnitude worse at that
for each dinoflagellate cellreleases ONLY its
metabolic and biological wastes into its surroundings
See appendix onefor supporting mathematics
Part Four
No Other Animals Do This
It is provocative to consider that today our own species, surrounded by a seemingly
enormous atmosphere and seemingly
“vast amounts of open space”
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may be well on its way, via an ongoing release of anassortment of industrial and societal wastes,
to a significant alteration ofthe entire gaseous environment in which we live
As a test of this last observation, envision an individual animal of any species other than our own
In virtually all of these cases, the organism’s daily pollution of its
environment is limited to its daily production of its bodily wastes
Continuing, however, envision this same human being in an automobile, backed up in crowded traffic on a busy eight-lane highway
All around in every direction are hundreds of other cars and trucks and buses, each spewing exhaust from an internal combustion engine
This indicates that each of us as individuals are contributing much more than our body wastes to our surroundings
All of the organisms below, for example, limit themselves to therelease of their biological, cellular, and metabolic wastes
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Continuing, however, envision this same human being in an automobile, backed up in crowded traffic on a busy eight-lane highway
All around in every direction are hundreds of other cars and trucks and buses, each spewing exhaust from an internal combustion engine
This indicates that each of us as individuals are contributing much more than our body wastes to our surroundings
In virtually all of these cases, each organism’s daily pollution of its environment is limited to daily production of its bodily wastes
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Next, however, envision an ordinary human being living in an industrialized country
One’s daily body wastes are again a factor, of course,
but humanity’s collective biological wastes are natural productions that have, in a
planetary sense, little impact on global systems
Continuing, however, envision this same human being in an automobile, backed up in crowded traffic on a busy eight-lane highway. All around in every direction are hundreds of other cars and trucks and buses, each spewing exhaust from an internal combustion engine.
This indicates that each of us as individuals are
contributing much more than our body wastes to
our surroundings
And we repeat this behavior every day - again and again and again – in Beijing, Los Angeles, Mumbai, Tokyo, Cairo, Karachi, Jakarta,Paris, Moscow, Rio de Janeiro, Cape Town, and New York City
releasing more multiple millions of tons of waste, without fail, relentlessly into the onion-skin-thin
layer of air that makes up earth’s atmosphere
Chemist Nate Lewis
As quoted by Friedman, 2008 - HOT, FLAT, AND CROWDED -
“Imagine you are driving your car and every mile you drive you throw a pound of trash out your window.
And everyone else on the freeway in their cars and trucks are doing the exact same thing, and people driving Hummers are throwing two bags out at a time – one out the driver-side window and one out the passenger-side window.
How would you feel? Not so good. Well, that is exactly what we are doing; you just can’t see it.
Only what we are throwing out is a pound of CO2 – that’s what goes into the atmosphere, on average, every mile we drive”
If world population did not grow at all, all of these impacts would likely double
as the world’s poorest nations industrialize
and seek to emulate our own standard of living
toaster-ovens microwaves hair-dryers steel mills
shopping malls motor-boats televisions, computers and hot-water heaters
our heating or air-conditioning units run a dishwasher and clothes drier run our lawnmowers and weed-trimmers
Now we switch on:
our refrigerators freezers street lights fluorescent lights
and we are not evenat home or at work yet
We are the only animals on earth that do this
And we still have not included
all the wastes generated by
unwanted catalogue mailings tons of disposable, throw-away containers
and all the items
that we ship halfway around the worldFor
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We are the only animals on
earth that do this
Every day, from all of those tailpipes on each and every bumper-to-bumper interstate, boulevard, and highway, we spew molecules of
carbon dioxide and carbon monoxide and other noxious fumes
We are the only animals on earth that do this,
and we do so during eachand every rush hour,
on every grocery run, on every holiday trip to visit family, and during every postal delivery
And then we repeat these same
activities every day,
again and again and again
so that our power plants, on our behalf,release still more tons of wastes and fumes
into the onion-skin-thinlayer of air that constitutes earth’s
atmosphere
without fail, relentlesslyand endlessly,
Notice also that these additional wastes do not constitute a ‘once-in-a-lifetime’ contribution by each of us
Instead, we repeat these assaults again and again and again,
day after day after day, throughout our lives
How can we imagine that endless billions of us can endlessly behave in this way without calamitous repercussions?
If we intend to enjoy such extravagance, our
populations must be smaller
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We are the only animals on earth that do this
No other animal species supplements its cellular and biological wastes with a planet-wide avalanche of industrial and societal wastes the way that we do
We are the only animals on earth that have EVER done this
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in the history of the earth has
EVERsupplemented
its biological wastes in this way
And no population explosions of red-tide dinoflagellates(which poison their environments by the release of wastes)
have ever supplemented their cellular and biological wasteswith a daily avalanche of industrial and societal
wastes the way that we do
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And these behaviors are NOT a minimal or incidental footnote to the biology of our species
Instead, they are one of our most distinctiveand all-encompassing characteristics
Knowing that earth’s atmosphere is not
responding to our assaults very well right now,
consider that the U.N.’s newest world population projections show that we are nevertheless on-track to ADD at least
our 7th, 8th, 9th and 10th BILLIONS to our numbers by 2100
And their “high-fertility” projections show us
reaching
15.8 BILLION
by century’s end
Because three-quarters of the earth's surface iscovered with lakes, rivers, oceans, seas, and ice,
it is both easy and descriptive topicture our home as "a water planet“
so that we could easily call ourselves "Planet Ocean“
(IOF, 1978; Anson, 1991, 1996, 2007)
On the other hand, if we consider earth's oceans and atmosphere as strictly surface features of our planet
an entirely different assessment presents itself
However, it is at least provocative to consider that today our own species, surrounded by a seemingly enormous
atmosphere and seemingly “vast amounts of open space”
also appears to be well on its way, via an ongoing release ofan assortment of industrial and societal wastes,
to a significant alteration of the entire gaseous environment in which we live
(not to mention the catastrophic physicaldamage that we inflict everywhere else)
Review of Key Concepts
Review of Key Concepts
climb and collapse really happen and we are not immune
collapse routinely occurs in environments that can appear to be almost entirely empty
calamities can arise from wastes and damage (as opposed to “running out” of things)
earth’s atmosphere and seas as onion-skin-thin surface films
dinoflagellate red-tides as quintessential examples of population explosions that induce calamity by the release of wastes
a thin-film of water on a globe
collapse with 99% mortality is a biological reality
we are not immune to collapse, and compared to any other animals or dinoflagellates that have ever lived, we are behaving comparatively badly
by our release of wastes, we exhibit a behavioral similarity with population explosions of red-tide dinoflagellates
we may well be on a trajectory that is far worse than outbreaks of dinoflagellate red-tide because we supplement our biological and metabolic wastes with daily onslaughts of industrial and societal wastes
while outbreaks of dinoflagellate red-tide can be categorized as localized events, the impacts of our own species are global in nature
We are dangerously misled by ourprevailing “open-space” suppositions
for it is a misperception to presume that human population growth and overpopulation cannot be truly serious so long
as “vast amounts of open space” remain
First, earth’s atmosphere and oceansare onion-skin-thin surface films
And climb and collapse really do occur – and they do soin environments that can appear almost entirely empty
When less than 2/1000ths of one percent of seemingly-available “space” is occupied
Review of Key Concepts
In addition, the suppositionthat “running out” of things
such as space, food,resources, or anything else
are necessarily the first or only factorsthat could threaten us
is an incomplete assessment of our current condition
and we are the only animals that do this, or that have ever done this
and are doing so on a worldwide scale so that we are not a localized phenomenon
and our behaviors in this respects are not a minimal or incidental footnote to the biology of our species
but are instead one of our most distinguishing and all-encompassing characteristics of our
Rev
iew
of K
ey C
once
pts
Appendix 1
Supporting math – Red-tides
Supporting Math – Red-tidesSevere red-tide conditions are common when Karenia brevis populations reach concentrations ranging between 100,000 to 1,000,000 or more cells per liter. Secondly, approximate dimensions of a typical K. brevis cell:
(1) Volume of 1 liter = 61.024 cubic inches(2) The approximate dimensions of a single cell of K. brevis are:
L: ~30 um (= 0.03 mm) = ~ 0.0012 inches ** W: ~ 0.0014 inches (“a little wider than it is long") *D: ~ 10 – 15 um deep (10 um = .0004; 15 um = .0006), so average = ~ .0005 in
** Nierenberg, personal communication, 2008 ** Floridamarine.org, 2008
Using the above:
Volume of a typical cell of K. brevis = (L) x (W) x (D)
= (.0012) x (.0014) x (.0005) = ~ .000 000 000 840 cubic inches
Thus one million Karenia brevis cells occupy approximately (1,000,000) times (.000 000 000 840) or a physical volume of about 0.000 84 cubic inches.
Recalling that one liter equals 61.024 cubic inches, subtracting 00.000 84 occupied cubic inches leaves (61.024) – (00.000 84) or about 61.023 16 cubic
inches remaining unoccupied. In other words, one million dinoflagellate cells in a one-liter sample still have approximately 61.023 16 cubic inches of unoccupied volume that would appear to remain theoretically-available to them.
Percentage Unoccupied
Therefore, the percentage unoccupied equals (61.023 16) divided by (61.024 00) so that about .999 987 2 or about 99.998 72% of the available volume remains unoccupied.
This means that such a K. brevis population manages to routinely visit calamity upon itself and the environment in which it resides, even asthe cells themselves physically-occupy less than2/1000ths of 1% of the total volume that appears to remain seemingly-available.
Thus, (100%) – (99.998 72%) = .001 28 %, or less than 2/1000ths of one percent of the volume that appears to remain theoretically-available.
Thus, even though the K. brevis cells occupy a volumetrically-insignificant portion of the "open-space" that visually appears to remain almost entirely “empty,” they manage, by their combined overpopulation and production of invisible and calamitous wastes, to catastrophically-alter the aqueous surroundings in which they live.
Supporting Math
The image shown left depicts the physical amount of space that constitutes two one-thousandths of one percent. Note that the dot in the image denotes two one-thousandths of one percent of the dark rectangle.
The step-by-step mathematics outlined below permits preparation of a two-dimensional illustration like the one shown here that visually depicts the proportional amount of area occupied by two one-thousandths of one percent.
(1) Use imaging software to open a rectangle 500 pixels high by 350 pixels wide = 175,000 square pixels (Here: dark rectangle without frame)(2) Thus, one percent of this area = (175,000) x (.01) equals 1750 square pixels(3) In addition, 1/1000ths of one percent = (1750) times (.001) equals1.750 square pixels(4) And two1000ths of one percent = (1750) x (.002) equals 3.5 square pixels(5) Calculating the square root of 3.5 square pixels equals1.87 pixels, so that a square of (1.87 pixels) by (1.87 pixels) equals 3.5 square pixels
Thus beginning with a rectangle of 500 x 350 pixels, a small square of 1.87 pixels by 1.87 pixels (length times width) would visually depict a physical region of two one-thousandths of one percent.
2/1000ths ofone percent
Real-world population calamitiesin nearly “empty” environments
Supporting Math – Reindeer of St. Paul IslandConcerning V. B. Scheffer’s classic reindeer climb-and-collapse study on St. Paul Island, Alaska, our estimate that the reindeer of St. Paul Island, Alaska physically-occupied “less than 2/1000ths of 1%” of the island’s total area at the time of collapse is derived as follows.
L: Assume an average reindeer is approximately 44” long
(Female reindeer ~ 38” long; males ~ 46” long; . so for our purposes, assume an average of 44”)
W: Assume that the width of an average reindeer is approximately 24” wide
Girth will vary with time of year; food, pregnant . . . females, etc., so for our purposes assume 24”
Thus the area physically-occupied by an average member of the population would equal (44 inches) x (24”) or approximately 1056 square inches each
Given a peak reindeer population of St. Paul island of slightly more than 2000 animals, (2000) times (1056) equals a combined area that is physically occupied by reindeer bodies of approximately 2,112,000 square inches (by the entire herd).
One square foot = (12) x (12) = 144 square inches, so that 2,112,000 divided by 144 means that the
bodies of an entire herd of 2000 animals would physically-occupy a total of 14,667 square feet.
If the area of St. Paul Island, Alaska is about 41 square miles, then if one square mile is equal to 27,878,400 square feet, then the total square footage of the island would equal ( (27,878,400) x (41) or approximately 1,143,014,400 square feet.
Next, we can subtract the14,667 square feet that are physically-occupied by the entire herd from the total square footage of the island so that (1,143,014,400) minus (14,667) results in a total “unoccupied” square footage of 1,142,999,733 square feet. Lastly, dividing the island’s total unoccupied space (1,142,999,733) by the total area of the island (1,143,014,400) gives the percentage of total unoccupied space at the time of the peak reindeer population, which was 0.999 987 168. Notice then that the collapse (and 99% die-off) of the St. Paul Island reindeer population began at a time when 99.999% of the island’s total area appeared to remain theoretically-available. Notice, therefore, that the herd’s collapse and 99% die-off both began (and proceeded to devastation) in surroundings that visually appeared to be
almost entirely empty.
Supporting Math – Reindeer of St. Matthew IslandWe can apply the same approach to D.R. Klein’s classic reindeer climb-and-collapse study on St. Matthew Island, Alaska (1968). Our estimate that the reindeer of St. Matthew Island physically-occu-pied “less than 2/1000ths of 1%” of the island’s total area at the time of collapse is derived as follows.
L: Assume an average reindeer is approximately 44” long
(Female reindeer ~ 38” long; males ~ 46” long; . so for our purposes, assume an average of 44”)
W: Assume that the width of an average reindeer is approximately 24” wide
Girth will vary with time of year; food, pregnant . . . females, etc., so for our purposes assume 24”
Thus the area physically-occupied by an average member of the population would equal (44 inches) x (24”) or approximately 1056 square inches each
Given a peak reindeer population of St. Matthew isl-and (1963) of slightly more than 6000 animals, (6000) times (1056) equals a combined area that is physic-ally occupied by reindeer bodies of approximately 6,336,000 square inches (by the entire herd).
One square foot = (12) x (12) = 144 square inches, so that 6,336,000 divided by 144 means that the
bodies of an entire herd of 2000 animals would physically-occupy a total of 44,000 square feet.
If the area of St. Matthew Island, Alaska is about 138 square miles, then if one square mile is equal to 27,878,400 square feet, then the total square foot-age of the island would equal ( (27,878,400) x (138) or approximately 3,847,219,200 square feet.
Next, we subtract the 44,000 square feet that are physically-occupied by the entire herd from the total square footage of the island so that 3,847,219,200 minus (44,000) results in a total “unoccupied” square footage of 3,847,175,200 square feet. Lastly, dividing the island’s total unoccupied space (3,847,175,200) by the total area of the island (3,847,219,200) gives the percentage of total unoccupied space at the time of the peak reindeer population, which was 0.999 988 Notice then that the collapse (and 99% die-off) of the St. Paul Island reindeer population began at a time when 99.999% of the island’s total area appeared , visually-speak-ing, to remain theoretically-available. Notice, therefore, that the herd’s collapse and 99% die-off both BEGAN (and proceeded to devastation) in surroundings that visually appeared to be
almost entirely empty.
Appendix 2
Supporting math – Thin Films
Here is the supporting mathematics:
(i) Earth's oceans are, on average, approximate-ly 3.6 kilometers deep. If we have 3.6 kilome-ters of water on one side of our planet and an-other 3.6 kilometers on the opposite side, this represents an addition of 7.2 kilometers added to earth's overall diameter.
(ii) Earth's overall diameter (including its molt-en interior, rocky mantle, crustal plates, and covering of oceans) is approximately 12,740 kilometers.
(iii) Thus, without the 7.2 kilometers of ocean, the earth's diameter would only be 12,732.8 km.
(iv) This means that 12,732.8 km out of 12,740 km (99.94%) of earth's diameter consists of its molten interior, rocky mantle, and crustal plates.
(v) Thus, the math shows that the average depth of the oceans accounts for only six one-hundredths of one percent of earth's diameter – an inexpressibly thin film indeed.
(12,732.8 divided by 12,740 = 0.9994) and (100 minus 0.9994 = .0006)
(For a twenty-inch classroom globe, .0006 times 20 inches would equal oceans, so that the classroom scale model would need a layer of water that is 12/1000ths of an inch deep to represent the ocean's depth in proportionally correct terms.) ( 20 times .0006 = .012 )
This presentation is a courtesy of
The Wecskaop Project
What Every Citizen Should Know About Our Planet
Copyright 2011, The Wecskaop Project.All rights reserved.
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