Memorandum from Mr Michael Gregory
As I have to care for my mother, it is not easy
for me to observe away from home. Therefore, I do 99% of my observing
in our rear garden. Unfortunately, my peaceful hobby, which harms
absolutely on one and is totally non-polluting, is absolutely
devastated by the light-pollution which pervades all areas of
Middlesborough. A recent satellite photo of Europe at night shows
that, size for size, the Teeside Conurbation is amongst the most
light polluted places on earth. Whilst I accept that the conurbation
is still heavily industrialised, I cannot understand why suburban
gardens have to be illuminated from dusk until dawn. If householders
wish to have security lighting, then why cannot it be of the type
that is triggered by movement (even if it is usually a marauding
cat). Additionally, a sports ground near to us blasts a wedge
of grey-blue light wastefully into the sky evening after evening,
whilst a school in the opposite direction has security lighting
which does nothing to make the school any more secure. In fact,
Middlesborough still comes out near the top of the nation-wide
crime figure leagues.
During the year 2002 I observed from home with
my telescope on 72 occasions. Of these, only five evenings could
be classed as acceptable with regard to light pollution, and that
simply because I waited until after midnight when much of the
security lighting in the area seems to be dormant.
On five occasions in 2003 I observed away from
home. No matter how I tried, I never seemed to be able to get
away from a village or farm that was not blasting light into the
sky.
As far as 2003 goes, there have been no clear
evenings where the light pollution has been low enough to make
observing worthwhile. Little wonder then that astronomy magazine
adverts are full of telescopes advertised as "unwanted gifts".
Moving now to a more general view. The following
paragraphs have been typed from the March (2003) issue of the
American produced astronomy magazine "Sky and Telescope".
This is from a report of a meeting of the International Dark-sky
Association (IDA), which was held in the Boston area of Massachusetts,
USA, last October (2002).
"Ongoing research has shown that bright
lights at night can disrupt our circadian rhythm and result in
a host of medical disorders including breast cancer, cardiovascular
diseases, and a weakened immune system. At the meeting, George
Brainard (Thomas Jefferson University) demonstrated how our body
stops producing melatoninan important hormone that affects
sleep, ageing and reproductionwhen exposed to even a tenth
of a foot-candle of certain wavelengths of light. Richard Stevens
(University of Connecticut Health Centre) pointed out that `the
risk of breast cancer in non-industrialised nations is one-fifth
that of industrialised nations'. He summarised six studies that
find artificial lights at night could be a significant contributor
to that risk factor."
"Joan Roberts (Fordham University) listed
hormones that our body produces during periods of light and darkness,
and showed how studies are leading to the development of chronotherapy,
the co-ordination of treatment with the time of day. For example,
administering chemotherapy drugs at night seems to be more effective
than in the daytime, since the body's immune system tends to be
more active at that time. This finding might seem new to modern-day
physicians, but as Roberts made clear with a quote from an ancient
medical text, it is a practice which was well understood by Chinese
medical practitioners thousands of years ago."
"Chip Harrison (Cherry Springs State Park)
told the audience how his Pennsylvania park is treating dark skies
as a natural resource that needs to be preserved and managed.
Cherry Springs has joined other `enlightened' parks in working
to maintain the public's right to unspoiled views of the universe."
"Bob Crelin (Lighting by Branford/Glarebuster)
compared photographs of graffiti-covered walls in brightly lit
areas and graffiti-free walls in darker spots on the same school
campus to show that security lights don't automatically deter
vandalism. This notion was reinforced by criminologist, Timothy
Crowe (TDC & Associates), who asserted that `poor lights and
poor designs led to feelings of insecurity.' Peter Boyce (Lighting
Research Centre) presented data that show people don't feel safer
at lighting levels of more than five foot-candles, debunking the
`more-is-better' myth that pervades night-time lighting practices."
The meeting of the IDA ended with the statement
that the future for dark skies (in America) looks "bright"!
Modern astronomical guide books state that the
farthest we can see with the naked eye is the Andromeda Galaxy
some 2.25 million light years away. Using my £1,600 refracting
telescope in my garden, I cannot even begin to find this galaxy!
Have the pristine Acklam skies of my childhood
gone for ever?
|