[Vision2020] Interesting report on environmental decline
Garrett Clevenger
garrettmc at verizon.net
Thu Oct 4 19:51:07 PDT 2007
Thanks, Tom, for bringing this to our attention. I
appreciate having Representatives who understand the
implications human activity is having on our planet
Earth, which, unfortunately, happens to be our only
home.
It's refreshing in a state where those in power
overwhelmingly disregard ecology, which in turn
affects water quality, air quality, wildlife habitat
and overall health of the environment we humans have
to live in.
Mostly all for $$$ that we'll never see, yet have to
pay for.
It saddens me to think where we are headed...
Take care,
Garret Clevenger
[Vision2020] Interesting report on environmental
decline
ttrail at moscow.com ttrail at moscow.com
Thu Oct 4 19:27:16 PDT 2007
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Constituents:
This is an enlightening report from the book, The
Nature of the New World
by Lester R. Brown. The fact that economic decline of
past civilizations
is linked to environmental decline is well brought out
by Brown.
Rep. Tom Trail
Earth Policy Institute
Plan B 2.0 Book Byte
For Immediate Release
October 2, 2007
THE NATURE OF THE NEW WORLD
http://www.earth-policy.org/Books/Seg/PB2ch01_ss2.htm
Lester R. Brown
We recently entered a new century, but we are also
entering a new
world, one where the collisions between our demands
and the earths
capacity to satisfy them are becoming daily events. It
may be another
crop-withering heat wave, another village abandoned
because of invading
sand dunes, or another aquifer pumped dry. If we do
not act quickly to
reverse the trends, these seemingly isolated events
will occur more and
more frequently, accumulating and combining to
determine our future.
Resources that accumulated over eons of geological
time are being
consumed in a single human lifespan. We are crossing
natural thresholds
that we cannot see and violating deadlines that we do
not recognize.
These deadlines, determined by nature, are not
politically negotiable.
Nature has many thresholds that we discover only when
it is too late.
In our fast-forward world, we learn that we have
crossed them only
after the fact, leaving little time to adjust. For
example, when we
exceed the sustainable catch of a fishery, the stocks
begin to shrink.
Once this threshold is crossed, we have a limited time
in which to back
off and lighten the catch. If we fail to meet this
deadline, breeding
populations shrink to where the fishery is no longer
viable, and it
collapses.
We know from earlier civilizations that the lead
indicators of economic
decline were environmental, not economic. The trees
went first, then
the soil, and finally the civilization itself. To
archeologists, the
sequence is all too familiar.
Our situation today is far more challenging because in
addition to
shrinking forests and eroding soils, we must deal with
falling water
tables, more frequent crop-withering heat waves,
collapsing fisheries,
expanding deserts, deteriorating rangelands, dying
coral reefs, melting
glaciers, rising seas, more-powerful storms,
disappearing species, and,
soon, shrinking oil supplies. Although these
ecologically destructive
trends have been evident for some time, and some have
been reversed at
the national level, not one has been reversed at the
global level.
The bottom line is that the world is in what
ecologists call an
overshoot-and-collapse
mode. Demand has exceeded the sustainable yield of
natural systems at
the local level countless times in the past. Now, for
the first time,
it is doing so at the global level. Forests are
shrinking for the world
as a whole. Fishery collapses are widespread.
Grasslands are
deteriorating on every continent. Water tables are
falling in many
countries. Carbon dioxide
(CO2) emissions exceed CO2 sequestration.
In 2002, a team of scientists led by Mathis
Wackernagel, who now heads
the Global Footprint Network, concluded that
humanitys collective
demands first surpassed the earths regenerative
capacity around 1980.
Their study, published by the U.S. National Academy of
Sciences,
estimated that global demands in 1999 exceeded that
capacity by 20
percent. The gap, growing by 1 percent or so a year,
is now much wider.
We are meeting current demands by consuming the
earths natural assets,
setting the stage for decline and collapse.
In a rather ingenious approach to calculating the
human physical
presence on the planet, Paul MacCready, the founder
and Chairman of
AeroVironment and designer of the first solar-powered
aircraft, has
calculated the weight of all vertebrates on the land
and in the air. He
notes that when agriculture began, humans, their
livestock, and pets
together accounted for less than 0.1 percent of the
total. Today, he
estimates, this group accounts for 98 percent of the
earths total
vertebrate biomass, leaving only 2 percent for the
wild portion, the
latter including all the deer, wildebeests, elephants,
great cats,
birds, small mammals, and so forth.
Ecologists are intimately familiar with the
overshoot-and-collapse
phenomenon. One of their favorite examples began in
1944, when the
Coast Guard introduced 29 reindeer on remote St.
Matthew Island in the Bering Sea to serve as the
backup food source for
the 19 men operating a station there. After World War
II ended a year
later, the base was closed and the men left the
island. When U.S. Fish
and Wildlife Service biologist David Kline visited St.
Matthew in 1957,
he discovered a thriving population of 1,350 reindeer
feeding on the
thick mat of lichen that covered the
332-square-kilometer
(128-square-mile) island. In the absence of any
predators, the
population was exploding. By 1963, it had reached
6,000. He returned to
St.
Matthew in 1966 and discovered an island strewn with
reindeer skeletons
and not much lichen.
Only 42 of the reindeer survived: 41 females and
1 not entirely healthy male. There were no fawns. By
1980 or so, the
remaining reindeer had died off.
Like the deer on St. Matthew Island, we too are
overconsuming our
natural resources. Overshoot leads sometimes to
decline and sometimes
to a complete collapse. It is not always clear which
it will be. In the
former, a remnant of the population or economic
activity survives in a
resource-depleted environment. For example, as the
environmental
resource base of Easter Island in the South Pacific
deteriorated, its
population declined from a peak of 20,000 several
centuries ago to
todays population of fewer than 4,000. In contrast,
the 500-year-old
Norse settlement in Greenland collapsed during the
1400s, disappearing
entirely in the face of environmental adversity.
Even as the global population is climbing and the
economys
environmental support systems are deteriorating, the
world is pumping
oil with reckless abandon. Leading geologists now
think oil production
may soon peak and turn downward.
Although no one knows exactly when oil production will
peak, supply is
already lagging behind demand, driving prices upward.
Faced with a seemingly insatiable demand for
automotive fuel, farmers
will want to clear more and more of the remaining
tropical forests to
produce sugarcane, oil palms, and other high-yielding
biofuel crops.
Already, billions of dollars of private capital are
moving into this
effort. In effect, the rising price of oil is
generating a massive new
threat to the earths biological diversity.
As the demand for farm commodities climbs, it is
shifting the focus of
international trade concerns from the traditional goal
of assured
access to markets to one of assured access to
supplies. Countries
heavily dependent on imported grain for food are
beginning to worry
that buyers for fuel distilleries may outbid them for
supplies. As oil
security deteriorates, so, too, will food security.
As the role of oil recedes, the process of
globalization will be
reversed in fundamental ways. As the world turned to
oil during the
last century, the energy economy became increasingly
globalized, with
the world depending heavily on a handful of countries
in the Middle
East for energy supplies. Now as the world turns to
wind, solar cells,
and geothermal energy in this century, we are
witnessing the
localization of the world energy economy.
The world is facing the emergence of a geopolitics of
scarcity, which
is already highly visible in the efforts by China,
India, and other
developing countries to ensure their access to oil
supplies. In the
future, the issue will be who gets access to not only
Middle Eastern
oil but also Brazilian ethanol and North American
grain. Pressures on
land and water resources, already excessive in most of
the world, will
intensify further as the demand for biofuels climbs.
This geopolitics
of scarcity is an early manifestation of civilization
in an
overshoot-and-collapse mode, much like the one that
emerged among the
Mayan cities competing for food in that civilizations
waning years.
You do not need to be an ecologist to see that if
recent environmental
trends continue, the global economy eventually will
come crashing down.
It is not knowledge that we lack. At issue is whether
national
governments can stabilize population and restructure
the economy before
time runs out.
# # #
Adapted from Chapter 1, Entering a New World,
in Lester R. Brown, Plan B 2.0: Rescuing a Planet
Under Stress and a
Civilization in Trouble (New York: W.W. Norton &
Company, 2006),
available on-line at
www.earthpolicy.org/Books/PB2/index.htm
Additional information at www.earthpolicy.org
Media & Permissions to Reprint Contact:
Reah Janise Kauffman
Tel: (202) 496-9290 x 12
E-mail: rjk (at) earthpolicy.org
Research Contact:
Janet Larsen
Tel: (202) 496-9290 x 14
E-mail: jlarsen (at) earthpolicy.org
Earth Policy Institute
1350 Connecticut Ave. NW, Suite 403
Washington, DC 20036
Web: www.earthpolicy.org
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