Cities

Most of us have been in one. Most of us live in one. According to the UN, 54 percent of the world’s population live in urban areas this year. By 2050, 66 percent of people in the world will. But what does that mean, anyway – “city”? It’s not as straightforward as it seems. In … Continue reading Cities

The Population of New York City in 2081

So the New York City region has the biggest collection of nighttime lights in the world, and that's where I would go to find people. How many people will live in New York City itself in 2081? That is, after two devastating wars in the mid-21st century (fictional, of course)… I projected numbers from some experts … Continue reading The Population of New York City in 2081

Where the 7 Billion Are and How Pictures of Nighttime Lights Can Be Useful

There are seven billion people in the world. Where is everybody, really? Discovering Maps The Population Reference Bureau (PRB) has a great interactive population density map that incorporates information on standards of living, such as life expectancy and income. This PRB map aggregates populations at the country level using data from official census results and multilateral institutions. … Continue reading Where the 7 Billion Are and How Pictures of Nighttime Lights Can Be Useful