At the Oct. 30 Vermillion Rotary Club meeting, USD Professor Emeritus Susanne Skyrm emphasized the urgent need to combat light pollution through the Dark Sky International Program. Representing the Living River Group of the Sierra Club, she detailed how excessive artificial lighting obscures the night sky, disrupts ecosystems, and has significant economic and health impacts. Skyrm discussed the various types of light pollution—sky glow, glare, and light trespass—and their detrimental effects on wildlife, particularly migratory birds and aquatic species. She noted that about 35% of global lighting is wasted and could lead to billions in unnecessary costs, while exacerbating carbon emissions. Advocating for better lighting practices, Skyrm urged community members to adopt principles for responsible light use and pursue local lighting ordinances to protect the natural beauty of the night sky, which inspires creativity and fosters a deeper appreciation of humanity’s place in the universe.