In a new open-access study that I published with my late colleague Kostya Trachenko from Queen Mary University of London, I propose a surprisingly simple nonlinear mathematical equation that unifies ...
In 1960, three scientists published a paper in Science that calculated, with deliberate provocation, that the human ...
The world’s population is still rising, but a new study suggests humanity crossed the sustainability threshold decades ago: ...
The human population of Earth could collapse and be cut in half in just 40 years if the conditions on the planet change, ...
Nearly half of the biggest US cities reported fewer residents after COVID. By 2024, many had begun adding residents again.
A sharp decline in international migration slowed population growth in 48 states, underscoring how dependent many states have ...
While global population growth is projected to slow over the rest of the century, Africa stands out for its relatively young ...
Chicago’s status as the third-largest city remains safe — for now — but how big is the gap and have the numbers changed in the last year? For years, experts have predicted that the city could lose its ...