East Asia: Earth at Night - geography.

East Asia: Earth at Night - geography. East Asia at Night Although more than one-fifth of the world's people live in East Asia, the region is not one of the most luminous because its population is mostly rural and relatively poor (see City Lights and Buying Power Map Treks). Still, a few bright spots stand out on the map. To the northeast, Japan and South Korea show clusters of brightly lit cities. The lights to the ...