The growing population of the world, now estimated to be over 7 billion, marks a global milestone and presents obvious challenges for the planet. There are extremely densely populated cities and sparsely populated countries. China is the most populous country with India following closely behind. This post brings together some disparate illustrations of our world as it grows, including scenes fro
![World Population: Where it's thick and where it's thin](https://cdn-ak-scissors.b.st-hatena.com/image/square/75cd326de78421c1c60357ce6bdb4c54dc0681c8/height=288;version=1;width=512/http%3A%2F%2Finapcache.boston.com%2Funiversal%2Fsite_graphics%2Fblogs%2Fbigpicture%2Farchive%2F224261.jpg)