it is the area on this map with the largest gap between its population ranking and its population density ranking. India and ...

In 2020, the population of the UK rose to over 67 million people. The major cities of the UK can be seen on the map. London is the UK’s largest city and Birmingham is its second largest city.

Napper et al, Citizen science reveals litter trends in the UK: Population density effects on coastal and inland regions, Marine Pollution Bulletin (2025). DOI: 10.1016/j.marpolbul.2025.117634 ...

Population density (often abbreviated PD) is a compound measure that tells us roughly how many people live in an area of known size. It is commonly used to compare how 'built-up' two areas are.

A study, published in the journal Marine Pollution Bulletin, is the first UK-based research to investigate the effects of population density and community on the accumulation of litter in the ...