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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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We produce four annual events:
And hold regular virtual talks and workshops for DarkSky members and Advocates:
DarkSky supports these wonderful events presented by our friends and colleagues:
Every year, the Globe at Night international community science campaign, a program of NSF’s NOIRLab, raises awareness about the impact of light pollution by inviting community scientists to measure and submit night sky brightness observations. All you need is a computer, tablet, or smartphone! And their web app is available in 28 languages!