4 ms·
https://xkcd.com/1138/ https://xkcd.com/1138/
by etep 9y ago
https://xkcd.com/1138/ https://xkcd.com/1138/
- kibwen 9y agoPlease see my other comment as to what this map is useful for. Furthermore, on a global scale, light pollution is not equivalent to population; consider the light levels of Indonesia, the world's fourth most populous country.