91É«ÇéƬ

Untangling Joel Cohen’s question, How Many People Can the Earth Support?
(Norton, £10.95, ISBN 0 393 31495 2), drove the reviewer of the hardback
(New Scientist, 18 May 1996) to the traditional back-of-the-envelope
calculations. For those with patience to pick through its many graphs and
tables, Cohen is worthwhile.