Please consider supporting the IDA. They are truly the leader on the fight to reduce Light Pollution.
Check out the RASC LPA site. There is a lot of great information and resources for anyone who is interested in taking on a local project.
Here is a link to a great Light Pollution Documentary that talks about all aspects of the problem and shares ideas on what individuals can do do help reduce Light Pollution.
www.youtube.com/watch?v=8pAlblSFD6o&feature=related
Below is a link to a local solution anyone can do.
www.youtube.com/watch?v=A4gTS5obNpA