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. 2009 Jan;117(1):A20–A27. doi: 10.1289/ehp.117-a20

graphic file with name ehp-117-a20f2.jpg

Glare, overillumination, and sky glow (which makes the sky over a city look orange, yellow, or pink) are all forms of light pollution. These photos were taken in Goodwood, Ontario, a small town about 45 minutes northeast of Toronto during and the night after the regionwide 14 August 2003 blackout. The lights inside the house in the blackout picture were created by candles and flashlights.