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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
•Dean Regas – astronomer for the Cincinnati Observatory, renowned astronomy educator and
co-host of PBS’s Star Gazers – talks about the importance of protecting night skies and supporting the International Dark-Sky Association.
Right now there is a great opportunity to double your impact protecting night skies.
Several of IDA’s committed donors have generously combined their resources to match, dollar for dollar, every gift that we receive until July 31 … up to $90,000! That’s $180,000 we can harness to invest in our programs to protect night skies.
This means that between now and July 31st your generous gift of $50 will double, becoming $100! Imagine your gift of $250 becoming $500, or your gift of $1,000 becoming $2,000.
Please, join our Matching Gift Challenge and donate today at darksky.org/match.
Under One Sky 2024 was our largest and most impactful global conference to date!