In this episode of Conservation Stories, host Tillery Timmons-Sims speaks with Stephen Hummel, Dark Skies Initiative Coordinator at the McDonald Observatory, about the growing issue of light pollution and its impact on the environment, wildlife, and human health. Hummel explains how artificial light disrupts natural ecosystems, sleep cycles, and migratory patterns while also reducing opportunities to view the stars.

The conversation highlights the simple, cost-effective solutions to light pollution, such as directing light downward, using appropriate intensity, and choosing warmer light tones. Hummel emphasizes that reducing light pollution benefits businesses, saves energy, and improves safety without sacrificing visibility.

Listeners will learn about the McDonald Observatory’s efforts to preserve Texas’ night skies and the broader implications of these initiatives for tourism, local economies, and the preservation of wildlife habitats. Hummel also touches on community-led approaches to light management and shares how cities like Dripping Springs, Texas, and Flagstaff, Arizona, are leading the way in becoming dark-sky-friendly communities.

This enlightening episode demonstrates how small changes in lighting practices can have a big impact on our environment, economy, and health.

More About Our Guest:

Stephen Hummel, Dark Skies Initiative Coordinator, McDonald Observatory / The University of Texas at Austin

Dark Skies Initiative

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Conservation Stories is presented by The Sandhills Area Research Association (SARA). Subscribe now to hear all the interviews.

Upcoming Episodes Include:
• Dr. Alyssa Whitcraft, Executive Director of NASA Acres and the former and co-founding Deputy Director for NASA Harvest
• Aric Denton co-Founder and CEO of DJR Labs
• Kelly Mulville, Vineyard Director at Paicines Ranch