Be Light Aware!
Or: Why do you think your desk lamp is fitted with a hood?
Martin Lewicki (Astronomical Society of South Australia)
2003 March 3 : This article has (after more than two years online) attracted an official response - including new and improved data on Adelaide lighting. An updated version of this article is in preparation. Meanwhile, check out Martin's Light Pollution Gallery and light pollution links.
Martin's other astronomical articles are available from http://www.fraserf.id.au/astronomy/martin-lewicki