Artificial Light at Night Trend Map (IMAGE)

Cornell University

Artificial Light at Night Trend Map

Caption

Map shows trends in levels of artificial light at night (ALAN) across the Western Hemisphere from 1992 to 2013. Pink and red dots show increases; blue dots show where light levels are decreasing.

Credit

Graphic by Frank La Sorte, Cornell Lab of Ornithology.

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For use with articles about this research only.

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