Sources: Various
Some fascinating pieces we came across in our sleuthing:
1. Explore a remarkable visualization of the human population of the world’s cities as Population Mountains (The Pudding, via Flowing Data).
2. Download a 34-page booklet from the UN, The World’s Cities in 2018 (United Nations, via Justin Long).
3. Check out some interesting and data-informed articles on the topic, Is the End of Extreme Poverty in Sight? (Mission Frontiers).
4. See the latest annual Status of Global Christianity from Todd Johnson and his colleagues at the Center for the Study of Global Christianity. A related article was published in the January issue of the International Bulletin of Missionary Research, but you’ll need a subscription to ready it.