December 25, 2023
Mistaking the Forest for the Trees
Last week I mentioned that simplified (impoverished)
language misrepresents nature. This misrepresentation
leads to poor decisions. For example, when we talk
about forests, if we focus our descriptions simply on
the living trees (which often happens in the context
of timber, carbon storage, scenery, recreational
opportunities, and many other human uses) the crucial
role of dead, dying and decaying wood becomes
minimized in our minds. People even start using
phrases like like "decadent trees are unproductive",
or "dead trees are an eyesore", or lately, "dead wood
is a fire hazard". The idea that forests can be
“tidied up” to remove dead wood (yet still remain
forests) is the unfortunate consequence of this
language.
Dead and dying still-standing trees, and horizontal
logs - sometimes called Coarse Woody Habitat - are a
major component of [unmanipulated] forests. In
addition to all the activity of microorganisms and
invertebrates, Coarse Woody Habitat provides shelter
and foraging opportunities for many birds, mammals,
amphibians and reptiles. Many of these organisms
require different stages in the decay process to
survive. Mammals that use dead and dying trees for
shelter range in size from bears to mice and shrews.
Woodpeckers excavate cavities in large standing dead
trees that many other bird species take advantage of
for nesting and roosting. Loose, decaying bark still
clinging to dead trees can provide roosting sites for
species of small birds and bats.
If you walk into a forest and look around, unless you
know what to look for, you probably won't notice much
evidence of all the processes that are going on. All
the microorganisms are invisible, but even larger
creatures living in and under the logs, branches and
organic matter will mostly remain hidden. You won't
see all the fungal [mycelia] spreading throughout the
forest floor, nor even many of a wide variety of
mushrooms unless it happens to be the right time of
year. There might only be a squirrel or a few birds
nearby during your tiny time slice glimpse of the long
series of processes that a forest is.
If they think about forests at all, most people focus
on lots of trees. Our use of language tends to channel
us into thinking about trees and forests as "things".
All of the living processes that very gradually result
in the formation and maintenance of forest soil
activities are rarely considered. "Things" are
conceived to be removable or replaceable objects, and
are relatively simple. This is not just about forests.
Nature is not really made up of things.
December 18, 2023
Trees Falling in the Forest
We are at a point where a significant
portion of the population misunderstands important
emerging issues, just as reality becomes increasingly
complicated. (Huge numbers of humans will apparently
do a number on a planet.) One global issue we are all
struggling to understand is to what extent climate
change can be mitigated by “nature restoration". In
this context, some people call for the planting of
trillions of "trees". They call this "forest
restoration".
A lot of "trees" planted in an area don't make a
forest, and this common type of linguistic subterfuge
can cause misunderstanding and warp minds. Of course,
there are many different types of forests, and they
all do have a lot of trees, but that is far from
everything that a forest is. There are some obvious
differences between forests and plantations: forests
include trees of all ages, from saplings to old
growth; a number of different tree species live mixed
in forests and the composition varies over time;
forests have very irregular spacing of living trees,
and necessarily include dead, dying, and decayed
remnants. In the long process of dying and decaying,
tree remains create important ecological effects that
can persist for more than a century. All of the
structural and temporal irregularities of tree growth
and death affect other plant and animal populations
that co-exist in a forest.
Theoretically, a plantation might very
gradually evolve into a forest if planted properly
over time with a mix of species and very uneven
spacing - but that process would take many human
lifetimes. Just what sort of future climate such a
forest might face by then is a serious question. Since
we can't plant a forest, the most beneficial course of
action seems to be to preserve the world's remaining
forests. That course of action would obviously
conflict with opposing vested human financial
interests - interests that might welcome the term
"forest restoration" and all that it implies and
ignores.
While planting trees can make sense as a response to
some human goals - providing more livable cities and
pleasant landscaping - human goals are inappropriate
for thinking about forests. Anthropocentrism looks
like it is leading us to a very unpleasant future.
December 11, 2023
Go Big and Go Home
I started writing these short posts after becoming
bemused by the surprising (to me) number of Sequoia
giganteum (giant sequoia) that have been planted
around the city of Victoria, B.C. in the last hundred
years or so. After weeks of searching, and then
locating them on a map, and the many months since, I'm
not at all sure what to think about the presence of
these iconic trees in an urban setting. Are they "out
of place"? And how can they even survive in such an
unnatural setting? For days at a time, I don't think
about them at all... This is not one of those days.
Except for those growing in parks and on golf courses,
the giant sequoias around Victoria have largely been
planted in people's yards. Understandably, they have
not been used by city planners as street trees.
Although the conjured image of a street lined with
towering, 150-year-old giant sequoias would
be...something...to see, that's surely best left in
the realm of the imaginary. Whatever purposes the
trees help fulfill growing in people's yards probably
varies over time as they become ever larger. Their
size was appropriate for the scale of their
prehistoric natural forest habitats, which for many
millions of years never experienced cities. Their
evolved characteristics also obviously formed in the
absence of any environmental changes introduced by
human activity. Where they were, and how they came to
be there long before humans stumbled upon them, could
make a fascinating study.
While a solitary majestic sequoia tree towering over a
house on a city lot might seem somewhat incongruous,
it also stands out as a potential reminder of nature's
remarkable complexity. (Those with an appetite for
irony might get an additional kick out of the
symbolism, but that's a different topic.) Well, such a
massive tree's presence could be a reminder if
people noticed. For the most part, passersby seem
unimpressed or unaware. In the Pacific Northwest of
North America there are so many "trees". Some
are big. Some are small. Many people seem to learn the
term "tree" and that's mostly enough for daily
thinking. It's not of particular interest that a tree
species has existed for over 200 million years, like
the Ginko - which is planted as a street tree
in Victoria and other cities. And really, what can you
say about a giant sequoia that could live for several
thousand more years planted on a city lot that has
only existed for a century?
The giant sequoias, as landscape features in a yard,
seem to create a conundrum: their potential size may
be an attraction, but before ever attaining a mature
size, they would get too large to be suitable for the
urban environment. Hmm... Mature giant sequoias are
very brittle, and shatter when they fall, which
historically made them unsuitable for lumber
production - thus, giant trees were sometimes made
into matchsticks! In retrospect, that doesn't even
seem surprising. On the other hand, apparently the
negative public reaction to reducing majestic trees to
matchsticks resulted in the creation of protected
reserves where they couldn't be cut down. On the
other, other hand, maybe it's best not to hope that
people will do the right thing after they have
exhausted all the other possibilities.
December 04, 2023
Misunderstanding Misunderstanding
The problem is not just that "Artificial Intelligence"
(AI) isn't what its promoters claim - more concerning
is the fact that it now exists and is so promoted. It
is fine to point out, as numerous people have, that
computers cannot really "know", or "learn", or
"understand" anything, but that shouldn't even be
necessary. Learning and understanding are parts of a
continuing process that living, embodied creatures
engage in as they develop. The result of "AI"
informing human thought is likely to be "Artificial
Understanding" (another oxymoron).
The damage from this confusion has been done. The
general public cannot tell the difference between
statistical associations of words programed and stored
in a computer database, and actual knowledge that
creatures derive through experience. Computers are not
alive and don't experience anything - instead
they are programmed to compute relationships in ways
that give results that seem to be acceptable for a
defined purpose. Words and concepts missing from
computer "training" databases will produce gaps and
errors in program output. More extensive training will
not overcome the programs' dependency on text and
imagery that already exists. (Please do not think that
all human thought is merely recombination of previous
thought.)
With so much misunderstanding generated by the
high-tech push for an "AI" saturated future, the
prospects for increased appreciation for Nature and
natural processes look dim. Are we facing a potential
offer of "Artificial Nature" sometime soon? There may
be tasks that "AI" systems can accomplish more quickly
and efficiently than humans. Such cases will
undoubtedly be touted as great accomplishments that
humanity should not go without. Is there prior history
that might reassure us that the use of those systems
would only be ethical and beneficial? Not really. The
danger is that some of those tasks seem likely to
involve accelerated degradation of our remaining
natural surroundings. That might include the effects
of military use of "AI" in current and future warfare.