Exhibition of the week: Sebastião Salgado: Genesis, Natural History Museum, London SW7

Visionary photographer-traveller Sebastião Salgado's Genesis delivers an outsize achievement wrapped in a thumping paradox.

The Brazilian master's eight-year project entailed 32 long-distance trips into the forests, cold lands and deserts where the unspoiled 46 per cent of our Earth survives beyond the ruinous attentions of humankind, or else in harmony with its indigenous peoples.

Yet this sumptuous homage to flora and fauna comes framed in the artistic conventions of humanity at its most sophisticated. Showcasing his virtuoso coupling of radical vision with classical form, it ranks with the finest of Salgado's work in its grandeur and sublimity.

020 7942 5000; nhm.ac.uk to 8 September