How will environmental changes such as ozone depletion and global warming affect human health? Tony McMichael, an epidemiologist, argues in Planetary Overload (Canto, £7.95 pbk, ISBN 0 521 55871 9) that “the erosion of the Earth’s life-support systems” is not a problem of minority interest, but that it poses real health hazards which will affect the lives of everyone on Earth. Ignore McMichael at your peril.
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