earth at night light pollution

Earth at Night, Nov. 27, 2000. Credit: C. Mayhew & R. Simmon (NASA/GSFC), NOAA/ NGDC, DMSP Digital Archive.

Earth at Night, Nov. 27, 2000. Credit: C. Mayhew & R. Simmon (NASA/GSFC), NOAA/ NGDC, DMSP Digital Archive. Click to enlarge.

from http://apod.nasa.gov/apod/image/0011/earthlights2_dmsp_big.jpg