The U.S. was ranked as the 210th most densely populated area, with a density of 37 people per square mile. The least densely ...

China is one of the most populous countries in the world, surpassed only by India. By the end of 2023, China boasted a population of about 1.4 billion people. Although this marked the country's second ...

But in cities two of the most pressing problems facing the world today also come together ... are exacerbated by the increasing population density and demands of urban environments.