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Ruskin Hartley, Executive Director of the International Dark Sky Association joins us to discuss his work and experiences in the association. Right now the IDA is working to grow beyond their roots in amateur astronomers in several directors. The group is forging partnerships with other bodies with an interest in lighting to further their goals, looking at the input of ecologists and medical experts, broadening the ethnic and gender diversity within the organization, working with designers to understand how to light outside with quality and responsibility in mind, and reaching out to regulators to keep the sky dark and the parts of the ground lit appropriately. Beyond the organization he talks about how we have the tools at hand to improve light at night through controls, teaching everyone about what they're missing in a post-LED boom world and his own personal encounters with the value of a night sky.