As nouns the difference between overpopulation and overcrowding
is that overpopulation is a situation which occurs when the number of occupants of an area exceeds the ability of that area to provide for those occupants while overcrowding is the action or event of a space having more occupants than a space can accommodate.
As a verb overcrowding is
present participle of lang=en.
overpopulation
Noun
A situation which occurs when the number of occupants of an area exceeds the ability of that area to provide for those occupants.
overcrowding
English
Noun
(-)
The action or event of a space having more occupants than a space can accommodate.
Verb
(head)