Here are a couple of videos by Nina Paley looking at over population from different viewpoints.
The first, which is called The Wit and Wisdom of Cancer, is a 5-minute animation that draws parallels between human overpopulation and the propagation of cancer cells.
Independent of this film I have many times thought along similar lines as the way humans eat up their host, Mother Earth, has striking similarities to the way cancer eats up its host.
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The second is not so much about the baby-boom as the baby-bomb. WIth storks flying overhead dropping pesky little babies all over the place.
Both of the films are saved by their humour, but Nina is serious about the problem and belongs to the Volontary Human Extinction Movement, which urges people not to reproduce (in a similarly humourous way).
Monastics have belonged to this movement, of course, since time immemorial (but without ever signing up).
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