Using a maldefinition is perhaps the main obstacle on the way of restoring a sustainable night environment. See the beginning of the wikipedia item, for real definitions written by experts independent on polluting industries.
The Declaration was approved (16-1-4) at the 12. Symposium for the Protection of Night Sky in Bielsko-Biala, Sep 14-15, 2012. See its programme, an abstract of my lecture-appeal and an abstract of my secondary lecture on expressing and measuring light amounts, or even the "slides" for both lectures.
|lp_what_is.pdf||2010-03-31 16:30||129K||defining and quantifying LP|
|Light_quanti.pdf||2012-09-14 00:40||494K||how we measure light|
|Declaration.htm||2012-09-26 11:19||6.0K||Declaration with footnotes|
|Light_pollutant_ap.pdf||2012-09-26 22:36||73K||lecture - appeal slides|
|Declaration.cz.htm||2015-03-04 13:08||6.2K||in Czech, with footnotes|