This 6½-minute video provides an excellent introduction to light pollution for general audiences. It introduces and illustrates some of the issues regarding light pollution and suggests three simple actions people can take to help mitigate it.

Losing the Dark has been rendered in many formats and 15 languages. You can download it for free via the IDA’s website.

Full-dome versions (for use in planetariums) are also available for a small fee from Lochness Productions.