“Join the Dark Side – How Artificial Light at Night has Transformed Our World”

Ken Walzak, Senior Manager Adler Planetarium; Board of Directors, DarkSky International

In a little more than a century our use of light at night has dramatically altered the natural pattern our world has enjoyed for billions of years. How does this impact flora, fauna and ourselves – as well as our future? And most importantly, how can you help restore the vital resource of “the night” to a brightening world?