Lights Out!DVD - 2015
Our planet is lit up 24 hours a day, seven days a week. We're addicted to light of all kinds, and like anything else that's addictive, is too much a bad thing? Join leading scientists in the lab and in the field to discover how much harm light at night may be causing people and to learn about the ground-breaking steps being taken to protect us.
Publisher: [Place of publication not identified] : [Publisher not identified], 
Branch Call Number: DVD-ED 535 LIGHTS
Characteristics: video file,DVD video digital,optical 1 videodisc (44 min.) : sound, color ; 4 3/4 in.
Alternative Title: Nature of things (Television program)