Examination of Witnesses (Questions 60
- 62)
MONDAY 9 JUNE 2003
PROFESSOR PAUL
MURDIN, DR
HELEN WALKER,
MR GUY
HURST, MR
BOB MIZON
AND DR
CHRIS BADDILEY
Q60 Dr Iddon: One way of getting
things rolling in a legislative sense, leylandii and the High
Hedges Bill has done that, is through Parliamentary bills, one
started in the Lords, one started in the Commons in the current
Parliament. My question is have you thought about using Parliamentary
processes and encouraging peoples to put down Early Day Motions
or to take out a Ten-Minute Rule Bill or, even better, a Private
Member's Bill?
Mr Mizon: There have been two
MPs who have shown interest in pursuing such courses and they
have not finally done so.
Q61 Dr Turner: Just a couple of quickies.
First on the question of regulation, is it not simpler rather
than trying to measure light levels to regulate by allowing the
use of only approved designs of lighting?
Dr Baddiley: I think it might
be simpler in the long run, yes.
Q62 Dr Turner: So that is a yes.
Secondly, the first-class telescope sites around the world, they
must get threatened by light pollution at various times and have
to take measures to protect themselves. Can you tell us a little
about the measures that they take and tell us whether there is
any value in using some of these measures in the United Kingdom?
Dr Walker: Certainly I have seen
the Canary Islands Sky Law which is a legal document passed by
Royal Decree and that covers telescopes on Tenerife and La Palma
and that is a very fierce, very restrictive document because it
is a premiere world-class site, one of the best sites in the world
and the Spanish people are very concerned to keep it in good order.
The legislation does not just cover lights, it also covers industry
and things that might create dust or anything like that so they
do not just restrict lighting, they also restrict the actual activities
of people. Australia is another case which has very strict laws.
These are all international agreements and in all international
observatories they are monitored by site directors.
Professor Murdin: The site directors
have a light pollution office in all of these observatories and
the usual technique is repeated photographs of the landscape around
the observatories and repeated measurement of the flux of light
from artificial sources that comes into the telescope. I think
it might be difficult to carry out the same measurements through
telescopes, for example in the environmental health officer sort
of context.
Chairman: Thank you very, very much indeed
for answering our questions. We will put out a report and perhaps
even there will be a debate in Parliament which you can come and
listen to. The excellence of that debate will depend on what you
have told us here. Thank you very much indeed.
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