Overcrowding or crowding is the condition where more people are located within a given space than is considered tolerable from a safety and health perspective. Safety and health perspectives depend on
An overcrowded street in Catalonia, Spain during Christmas season
Human overpopulation or human population overshoot is the condition in which human populations may become too large to be sustained by their environment or resources in the long term. Human overpopula
Table of population growth in England 1780–1810 in An Essay on the Principle of Population (1826) by Thomas Malthus, which would go on to be an influential text on Malthusianism
American biologist Paul R. Ehrlich generated renewed interest in the topic of overpopulation with The Population Bomb (1968).
Waste generation, measured in kilograms per person per day
A family planning placard in Ethiopia. It depicts negative effects of having more children than people can care for.