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The light changes colors and brightness, with spotlights
shining up into the trees. Some of the
lights are in motion, while others were stationary but revealing the beauty and
texture of tree bark and branches. There
are several opportunities for interaction between trees and visitors, including the ability
to cause trees to light up in response to a tight tree-hugging. My favorite is the ability of visitors to
project images of their own faces into the tree canopy.
Although Illumination allows us to see trees in a new light,
I noticed it has a tendency to reduce human interaction with nature on nature’s
terms; it becomes a more abstract entertainment experience. You may disagree with me on this point, and I
welcome your thoughts.
If nothing else, Illumination shows how far light-emitting
diode (LED) technology has come in just a few years. The lights at Illumination, which are mostly
focused beams of light, are absolutely intense when viewed up close, and can be
used more creatively than incandescent lamps.
As a side note, some incandescent bulbs will soon be disappearing from
store shelves due to tightening federal
energy efficiency standards, but this may not be noticed once consumers find
out how many amazing new bulbs that are now becoming available. We are in the midst of the most significant
lighting revolution since the light bulb was made practical over a hundred years
ago by Thomas Edison. ComEd is a
co-sponsor, and is a promoter of LED technology, as is the Cool Cities
movement.
Because of environmental concerns about the promise and
peril of LEDs and the possibility of the exhibit encouraging more backsliding
on society’s efforts, such as they are, to reduce light pollution, I had
engaged the Arboretum staff in some discussion about the sustainable aspects of
this display. The brochure states the
display uses as much energy as three homes. I have not seen the math used to arrive
at that figure, but there is a fallacy in arguing that LEDs are “green” when you are
burning energy to save energy, a lot like spending money at a retail store
where they say “you saved money today.”
We all know better. Don’t we? LED lights are indeed more energy efficient
than older incandescent lamps, but adding this new event at Morton Arboretum –
even if we judge it worthwhile – represents a carbon footprint increase for the
institution.
The Arboretum correctly points out that this is a family experience
for the holidays. In that respect, the
display truly shines. It also offers visitors a new experience at gazing at the
structure of trees. And of course, it is
bringing in more money to support good tree advocacy and research
programs. Finally, Arboretum staff claimed they gave
serious consideration to ecological concerns such as having a winter time display that has minimal effects on insect life.
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Perhaps it is another zoo-light experience done differently,
but soon it will be over, and the natural environment of the Arboretum will
return to peaceful slumber during the stillness and darkness of night as nature
rests for the winter.
Illumination continues through January 4, 2014 at the Morton Arboretum in Lisle.
-Jeff Gahris
Thoughtful essay balancing the various aspects of holiday celebrations and ecological and environmental considerations.
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