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Light pollution is the human-made alteration of outdoor light levels from those ocurring naturally. It has harmful effects on:

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By Staff
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Shoot for the stars this November 8th & 9th in Tucson, Arizona for the 2019 Annual General Meeting and Conference. Join us for a weekend of networking and peer-to-peer learning as we explore the steps we can take – big and small – to combat light pollution in our communities and protect natural darkness around the world.
IDA members, advocates, partners, and supporters are invited to attend the weekend of networking, fun, and celebration of natural night skies. Learning tracks include night sky conservation, night sky advocacy, and the science of the night sky.
Tucson, Arizona has been dubbed the “astronomy capital of the world,” and offers incredible opportunities for stargazing, astrophotography, and observing world-class dark sky friendly lighting.
We hope to see you soon!