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International
Ecology of Night symposium was very .. illuminating!
Don
McCormick
Muskoka Magazine Nov 2003
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Photograph:
Don McCormick
Robin Tapley was instrumental in establishing the
Echo valley Observatory near Huntsville. As a resident naturalist
for Delta Grandview Resort, he hosts nightsky viewing sessions
using the nearby observatory's powerful telescope.
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In his keynote
address to the recent international symposium, "Ecology of
the Night," Monte Hummel, President of the World Wildlife Fund
of Canada, threw down the gauntlet to the participants - don't just
talk about it, do it!
Quoting Winston
Churchill, he told the crowd, "When all is said and done, more
is said than done," then challenged participants to move this
symposium beyond the normal outcomes of most such gatherings, and
to take action that would preserve the night skies from the unrestricted
proliferation of artificial nighttime lighting.
Fifty participants,
representing a wide range of backgrounds, from the scientific to
the spiritual, gathered at the Leslie M. Frost Natural Resources
Centre in Dorset, Sept. 22-24, to share information, identify the
issues and design an action plan that would preserve the integrity
of dark skies. The symposium was sponsored by the Muskoka Heritage
Foundation, in cooperation with a number of other co-sponsors.
All living organisms
are "tuned in" to the daily cycle of light and darkness.
Modern society has increasingly intruded on that period of darkness
with artificial lighting. There is an increasing body of knowledge
that suggests all living organisms, ourselves included, are under
some degree of threat from this rapidly increasing use of artificial
lighting.
In the first
phase of the conference, a variety of presenters spoke about dark
skies in a wide range of perspectives - spiritual, cultural, astronomical,
aesthetic, historical, natural or biological, human health and regulatory.

Pleiades - Photograph: Terence Dickinson

Orion
- Photograph: Terence Dickinson
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Terence Dickinson,
who has done a lot to raise the profile of astronomy, presented
a slide show of views of the night skies. This brought the entire
audience to the place of awe and wonderment that has been inspirational
to humankind since its very beginning. The sheer beauty and immensity
of the universe made a powerful case for preserving dark night skies.
When the August
2003 power failure threw a large section of eastern North America
into complete darkness, many people in Toronto were able to see
the Milky
Way for the first time in modern history. People living in areas
lit up with artificial lighting "never see the glory of the
night skies - nature at its finest," said Dickinson.
Rev. Johanne
Hills, a minister at Trinity United Church in Gravenhurst, made
a very eloquent looking at the night skies presentation from a spiritual
perspective. When people look at the night skies, they are moved
to awe. The stars are a reminder of God's presence. There is a need
to protect these areas because they are restorative," she said.
The audience
learned from plant physiologist, Dr. Tony Bidwell, how the normal
light/dark cycle is "powerfully important in the development
of many plants" and from biologist Dr. Bryant Buchanan, "that
artificial night lighting has the potential to disrupt normal activity
and behavior of nocturnal amphibians."
First Nations
representatives Henry Lickers and Tom Hill told of the importance
of the dark sky, the "velvet blackness," to native cultures.
"The division of the day into dark and light represents the
balance of Creation," explained Lickers. Night - with its sounds,
its smells, its moon, its stars is to be embraced, not feared.
This view of
night stands in stark contrast to the one put forth by Bill Stephenson,
in which he describes night as historically being a time of fear.
Lickers dismissed this view as a perversion propagated by the movie
industry.
Artist Michael
Mesure, described the plight of migratory birds who use the moon
and stars for navigation, and who are disoriented by the light from
large cities. Between a hundred million and one billion birds are
lost each
year - 193 every 60 seconds in Toronto alone - during migration
season. He has formed an organization called FLAP, Fatal Light Awareness
Program, to educate building owners to reduce the escape of light
from their buildings.
Representatives
from parks in both Canada and the United States explained that,
while parks offer the best opportunity to protect night skies, this
is not currently high on the managers' list of priorities. It will
be necessary to get information about the importance of night skies
into the hands of parks managers.

Glowing Moon
Photograph: Terence Dickinson
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The Muskoka-Parry
Sound region might be considered a leader in this regard, since
the local office of the Ontario Ministry of Natural Resources is
aware of and supports dark skies initiatives. In 1999, Torrance
Barrens was designated a dark skies preserve, the first of its kind
in Canada and one of the first in the world.
Jenik Hollan,
scientist and astronomy professor from the Czech Republic brought
a European perspective to the issue. He related some of the European
successes and failures, as well as the planned developments in his
homeland.
Dr. Joan Roberts,
a professor of chemistry at Fordham University in New York, and
Dr. Steven Lockley of the Harvard Medical School struck a chord
with their accounts of the effect of light at night on human health.
Humans have an internal clock that is "set" by the normal
light/dark cycle of a normal day, called "circadian rhythm."
If the dark/light cycle gets out of sync with one's established
circadian rhythm, this can have dire consequences for human health.
The intrusion
of light during the sleep cycle can disrupt the circadian rhythm
and this, in turn, can upset the immune system and make a person
more susceptible to disease, for example. Increased incidence of
cancer among shift workers has been linked to this effect. It can
also dramatically decrease
work performance. Twenty-four hours of sustained wakefulness is
equivalent, in its effect, to someone having a blood alcohol level
of. 1 percent - above the threshold that makes one legally drunk.
Brian Whitehead,
Director of Planning Services for the District of Muskoka, described
some local experiences with trying to control light pollution. He
has found that a balance approach is necessary. A combination of
stewardship, municipal planning instruments (site plan control,
official planning policies, subdivisions agreements) and municipal
bylaws can be used with some effect. Unfortunately, planners lack
the technical expertise to assess lighting plans. As well, it may
be too onerous to require lighting plans from small commercial developments.
Tony Rutenberg
is in the business of selling lighting systems. He also has impressive
technical expertise and is an advocate of lighting that preserves
the night skies. He demonstrated some of the equipment available
on the market for lighting systems.
Equipped with
a common knowledge base, the symposium participants broke up into
four groups, each expected to deal with a specific perspective on
dark sky issues - naturat/biological, scientific/physiological,
cultural/historical and regulatory/governance. Each group was to
pinpoint the concerns and develop a list of potential solutions.
A lack of awareness
of the problem was seen as a major issue. Inclusion of light pollution
in school curricula; presentations to professional, technical and
trades organizations; getting the media to take an interest in the
problem; lobbying of politicians at all levels; producing publications
and websites with easy-to-read information are some of the measures
proposed. A lack of respect, for others and for the law, was another
problem. Ways of changing attitudes and values need to be explored,
the groups advised.
This international
symposium, the first of its kind in the Muskoka area, was certainly
a good step in raising awareness for issues pertaining to dark skies.
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