View source for Light Pollution Definition

  Light pollution is the introduction by humans, directly or indirectly, of
  artificial light into the environment.

Fuerteventura IAU/UNESCO Expert Meeting containing the full formulation
http://www.starlight2007.net/pdf/FinalReportFuerteventuraSL.pdf

=Notes to the Light Pollution Definition, by Friedel Pas=

Von: 	Friedel Pas <friedel.pas@scarlet.be>
Reply-to: 	"conference of \(European\) IDA section leaders" <ida@amper.ped.muni.cz>
An: 	'conference of (European) IDA section leaders' <ida@amper.ped.muni.cz>
Betreff: 	Re: [Ida] definition of light pollution/ light nuisance
Datum: 	2010-07-13 12:44:26


Hi Wim and the rest,

The person you were referencing to in Armagh was me.

Your translations for light pollution and light nuisance are indeed the one
you need to use. Working from the perception of light nuisance and light
pollution can make also already a difference in how to handle with.

Were I was referencing in Armagh was to the expert meeting at Fuerteventura
of the Starlight initiative. There was a discussion on this subject. The
result was based on the definition of cinzano you were referencing to what
was also already a conclusion on the symposium in Vienna that we need to use
that definition. The words were formulated different to make it more
matching with definitions that were used also in international juridical
cases. So there is not so much difference between the two definitions, only
in the way it is formulated. This resulted in the following text:

Light pollution is the introduction by humans, directly or indirectly, of
artificial light into the environment.
You can find that in the following document:
http://www.starlight2007.net/pdf/FinalReportFuerteventuraSL.pdf

The reason the discussion was started was also that several countries are
telling in their policy notes that there exist not an international accepted
definition so they create their own definition and in that way limit
directly the things were they want to work out policy on light pollution and
were not. This part of the report became also a report for the UNESCO World
Heritage committee and become so in the UNESCO's material. In that way it
become more difficult for countries to state that there is no international
accepted definition.

Except from those two definitions the most other definitions you found
reference to consequences of light pollution. I believe it is not a good
case to define your problem by defining the consequences and not the problem
self. The research on consequences of light pollution is still ongoing and
every year new things are discovered. That make this definitions also not
very sustainable. This definitions do well.
Several people not like the definition because it seems that no light at all
can be used. For that reason it is important that some remarks are mentioned
in combination with the definition.
You can compare it with the definition of other types of pollution like air
pollution. There we notice also that we will have always a number of air
pollution or we need to stop living like we do in the modern world. The
actions and policy their followed is to take those actions to reduce the
impact of the consequences to an acceptable minimum. That is exact also what
we want to do with policies on light pollution.

Light nuisance is not much used for the moment. Especially for legislative
reasons the use of light nuisance is chosen because there exists already
longer legislation about nuisance where they can make use about also for
light.

Regards,

Friedel

 20:17, 26. Jul. 2010 GuentherWuchterl 

WH --[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 15:14, 28 April 2016 (CEST)