From West Cook Wild Ones:

For every light-filled day, there should be a dark-filled night. Increasingly, artificial light fills the night sky. This light pollution disrupts the lives of plants, mammals (including humans), reptiles, amphibians, birds and insects.

Join us as speaker, Ken Walczak, describes changes in the night sky over time and how those changes impacts the living world. Discover the beauty of nocturnal earth and learn how you can help protect the darkness and the creatures that depend upon it. Ken will offer simple actions that all of us can implement.

Ken Walczak is the Far Horizons Senior Manager at the Adler Planetarium in Chicago. Far Horizons is a scientific research and engineering program that engages students, volunteers and the public in hands-on research projects. Ken has co-authored numerous scientific papers on light pollution research. He serves on the Board of Directors of the International Dark-Sky Association and is a founder of the Chicago Chapter of the International Dark-Sky Association. Ken co-led the designation of The Palos Preserves as the World's Largest Urban Night Sky Place.

Register here: https://www.eventbrite.com/e/the-dark-side-of-nature-protecting-the-nighttime-environment-tickets-618222920397