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FOREST
CONSERVATION NEWS TODAY
Plants
Make the Planet Habitable, End Commercial Old-Growth Logging
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Forest
Networking a Project of Forests.org, Inc.
http://forests.org/ -- Forest Conservation
Portal
http://forests.org/links/ -- Forest
Conservation Links
08/13/01
OVERVIEW
& COMMENTARY by Forests.org
**
Plants Make the Planet Habitable **
Plants,
organized into communities and arrayed across landscapes,
make
the Planet habitable. This is
particularly true of relatively
undisturbed,
large, natural forest expanses. A
recent study in
_Science_
reiterates this point, attributing current climate and
animal
diversity to colonization of land by plants - which they
conclude
may have occurred earlier than previously thought. Human
induced,
widespread destruction and diminishment of natural
vegetation,
threatens to significantly impair operation of the
Earth's
ecological systems. The global ecological
fabric has been,
and
continues to be, so ripped asunder that it is an open question
whether
global plant distribution and condition is adequate to
continue
maintaining atmospheric integrity, cycling water,
maintaining
soils and producing useful products.
The World's
remaining
wildlands are critically important to their indigenous
populations;
and to global, regional and local ecological
sustainability.
Only in
large, intact ecosystems can the natural biological,
ecological
and evolutionary functions of plant communities continue
undiminished. Less than a quarter of the World's
pre-agricultural
forest
extent has not been diminished or lost, and most of what
remains
is threatened. The Earth has likely
already lost too much
natural
vegetation for the Planet's ecological functions and current
conditions
to be sustained in the long-term - barring major
ecological
restoration. Historically, natural
plant assemblages
provided
the life-giving context for human societies.
In many eco-
regions
(and soon to be most) natural plant communities are
surrounded
by human constructs, and are so fragmented that they are
hard
pressed to maintain themselves and their ecological functions.
The era
of commercial development of large, old-growth ecosystems
that
are relatively untrammeled by the activities of modern humankind
must
come to an end, and the era of landscape level protection,
management
and restoration commenced. Given the
perilous state of
the
Earth's vegetation, and global requirements for ecological
sustainability,
it is essential that most remaining forests be
protected
as global ecological reserves.
Maintaining most remaining
natural
vegetation in an intact state, and using this as stock to
restore
and regenerate degraded landscapes, is a Planetary
imperative. Given the level of threat posed to human
security and
indeed
survival by decline of biological systems, this will require
massive
funding primarily by the overdeveloped nations, to compensate
affected
governments and human communities, and assist in the
transformation
to ecological sustainability.
** End
Commercial Old-Growth Logging **
An
important component of sustaining global vegetation will be
fostering
benign management of regenerating forests.
Forests.org
wholeheartedly
supports forest certification as one means to do so.
However,
remaining old-growth forests are so valuable ecologically -
in
terms of their species and genes; as a blueprint for future
restoration;
and for their local, regional and global ecosystem
outputs
- that certified commercial logging of the Earth's few
remaining
large regional forest wildlands is inappropriate.
Commercial
scale logging inevitably significantly diminishes forests
when
they are intensively logged for the first time. Certified
logging
permanently alters forests ecologically, including the
composition
and relative quantities of plants. In
terms of forest
conservation
benefits, certification is not a replacement for
extensive
protection of most of the World's remaining forest
wildlands.
Extensive
commercial logging of the World's remaining old growth
forests
is unworthy of certification as being "green". Doing so
gives a
false assurance of environmental acceptability to consumers,
while
legitimizing commercial logging of the World's remaining forest
wildernesses
by multi-national companies. Given the
extremely high
conservation
value of all remaining old-growth forests, the
assumption
should be that in every case they are to be strictly
protected;
with certified management being the carefully prescribed
exception.
As the
certification scheme that claims high levels of environmental
rigorousness,
the Forest Stewardship Council (FSC) has a special
responsibility
to not allow certification of commercial logging of
old-growth
forests. FSC's principles that
enunciate the conditions
under
which old-growth can be logged are woefully inadequate. In
most
cases they ultimately permit industrial scale logging and
require
only 10% conservation set-asides. To
demonstrate the merit
of
their "green" seal of environmental acceptability, FSC's
principles
must be revised to ensure that certification of old-growth
forests
only occurs at scales and using methods that ensure upscale
ecological
forest sustainability.
Certified
harvest of any portion of the World's remaining old-growth
forest
wildlands is only appropriate if 1) carried out by local
peoples
to meet their local needs, 2) such harvest is composed
entirely
of small and medium scale local production that strives for
ecological
sustainability, 3) and management occurs within the
context
of much larger strictly protected areas.
Forests.org
strongly endorses forest certification in secondary
forests,
and certification of appropriately scaled "eco-forestry" by
local
peoples in primary forests. There is
nothing "green" about
commercial
logging of old-growth forests.
Forests.org's Old-Growth
Campaign,
which will be intensified in the coming months, holds the
following
basic premises:
1) Most
remaining old-growth forests, and traditional levels of local
use,
must be strictly and permanently protected.
2) Only
small and medium scaled, locally controlled logging of old
growth,
under an "eco-forestry" management plan that strives for
ecological
sustainability, is environmentally acceptable and worthy
of
certification as "green".
3)
Landscapes and regions, not forest stands, are sustainably
managed;
thus locally controlled eco-forestry management must be
accompanied
by establishment of large, adjacent strictly protected
areas.
4)
Until such time as forest certifiers direct their activities
primarily
to regenerating secondary forests, and limit certification
of
old-growth forests to the above situations, their "green" claims
to
environmental sensitivity are not only meaningless, they threaten
the
World's remaining large forest wildernesses, and are not worthy
of the
support of forest ecologists, conservationists and concerned
consumers. There is nothing "green" about
commercial scaled old-
growth
logging, regardless of management practices employed.
Forests.org
calls upon FSC and their competitors to embrace rigorous
conditions
for harvesting old growth, in order to rightly earn their
claim
that buying their products helps protect the World's forests.
Failure
to do so will result in widespread campaigns to buy only old-
growth
free and locally produced eco-forestry products, and boycott
all
other forest timbers (rainforests in particular). If left
unchallenged
on the point of certification of old-growth wildlands,
the
certification movement may well legitimize the final loss of
large
and contiguous natural forest regions from the face of the
Earth. Let this be a call to arms: commercial
old-growth logging is
dead.
g.b.
P.S. As one can imagine, the environmental
conglomerates are livid
that
their strategy to increase certified commercial logging of
unlogged
old-growth rainforests be questioned.
Given how much many
large
groups have invested in the scheme, I would expect the shrill
denunciations
and rhetoric to continue without answering the
question:
How can commercial logging of old-growth be defended as a
means
to protect forests? In the interest of
transparency, and in an
effort
to progress the debate, Forests.org will be posting both
critical
and supportive replies to http://forests.org/certification/
in a
day or two, and from then on. This
campaign has only just
begun. These concerns will be satisfactorily
addressed or
certification
will be permanently discredited as a greenwash ploy to
access
and log the World's remaining old-growth forests.
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RELAYED
TEXT STARTS HERE:
Title: Did Plants Cool the Earth and Spark
Explosion of Life?
Source: Copyright 2001 National Geographic
Date: August 10, 2001
Byline: Hillary Mayell for National Geographic
News
Plants
colonized Earth much earlier than previously believed, giving
a jump
start to the huge proliferation of animal species that
occurred
hundreds of million years ago, say scientists at
Pennsylvania
State University.
Based
on the fossil record, scientists have thought that land plants
and
fungi evolved around 480 million years ago. The researchers at
Penn
State propose much earlier dates based on molecular clock
analysis:
700 million years ago for land plants, and 1.3 billion
years
ago for land fungi.
The
earlier estimates suggest a radical new possibility that ties two
phenomena-cooling
of the Earth's temperature, known as Snowball
Earth,
and the accelerated pace of the evolution of animals, referred
to as
the Cambrian Explosion-to the early emergence of plants.
"No
one has considered connecting Snowball Earth and the Cambrian
Explosion
to the emergence of terrestrial plant life because no one
considered
that plant life existed until after these two
occurrences,"
said evolutionary biologist and co-author of the study
Blair
Hedges.
"The
earlier dates add a possibility for a biological explanation for
the
changes that is radical compared to what is believed now," says
Hedges.
Explosion
of Life
Snowball
Earth describes periods of intense glaciations that took
place
700 to 580 million years ago.
"The
oceans were frozen all the way to the Equator," said Hedges, "as
opposed
to more modern times, when the ice sheets only go as far as
Canada
or maybe northern Pennsylvania."
The
Cambrian Period occurred 540 to 500 million years ago. Animal
life on
the planet exploded during this period; most of the major
groups
of animals first appear in the fossil record at this point in
time.
What
happened to precipitate this sudden proliferation of species-an
evolutionary
"Big Bang"-has been the focus of much study. There
hasn't
been a widely accepted theory on what sparked the Cambrian
Explosion,
said Hedges. Most proposed explanations, however, have
focused
on geological events-perhaps tied to the breakup of the
ancient
super continents or a reversal in Earth's magnetic polarity.
This
study, published in the August 10 issue of Science, suggests a
biological,
rather than geological mechanism.
Plants
and the Atmosphere
Before
plants drifted in from the sea, the Earth was a fairly barren
wasteland
of rocks, sometimes buried in ice.
Hedges
and his collaborators suggest that as plants colonized Earth,
they
changed the climate, making it cooler by removing carbon dioxide
from
the atmosphere.
"Lots
of plants would remove carbon dioxide from the atmosphere and
increase
the amount of oxygen," said Hedges. "It's the reverse of the
global
warming we see today, when we're releasing more carbon dioxide
into
the atmosphere by burning fossil fuels."
At the
same time, plants release more oxygen into the atmosphere.
"One
widely entertained idea is that the Cambrian Explosion had
something
to do with an increase in oxygen at the time," said Hedges.
The
lack of oxygen would limit animal size because the larger an
animal
is, the higher its requirement for oxygen.
"The
plants conceivably boosted oxygen levels in the atmosphere high
enough
for animals to develop skeletons, grow larger, and diversify,"
said
Hedges.
The
theory is bound to engender controversy; there is some question
as to
whether there would be enough plants to have caused the changes
proposed
by Hedges and company. But Hedges, whose area of expertise
is
astrobiology-the study of the relationship between life and the
environment-is
excited about the possibility.
"This
study suggests that there's a lot more synergy between
biological
evolution and the Earth's geologic history."
More
Information
Early
Plant Life
Plants
have molecules called lignins, which contain carbon but do not
readily
decompose.
After
the plant dies, some of its carbon remains locked up in the
lignins
and can become buried in the Earth through geologic
processes,
eventually forming into coal, oil, and other fossil fuels.
Burial
of these carbon atoms prevents them from being released back
into
the atmosphere. Fewer carbon atoms in the atmosphere means a
cooling
of the Earth's temperature.
The
researchers also suggest that the pioneer lichen fungi, which
produce
acids strong enough to dissolve rocks, also could have helped
to
reduce carbon dioxide.
When
washed away by rainwater, the calcium released from the lichen-
encrusted
rocks eventually forms calcium carbonate limestone in the
ocean,
preventing the carbon atoms from forming the greenhouse gas,
carbon
dioxide, in the atmosphere.
###RELAYED
TEXT ENDS###
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