In a dark corner of the Science & Industry Museum’s new underground gallery is a vision of the end of the world. With the wall to your left walk straight ahead from the entrance until you reach it: a black and white print about four feet by six feet across, one of the many dozens hanging in the dusk of the subterranean space. What the eye sees is an atomic bomb blast – that uprushing spew of light which the brain perceives as a mushroom cloud – but that’s not what it is. What it is, is a photograph of a raincloud exploding over the Amazon forest. When that cloud disappears – when the unique weather systems governing the forest-continent’s ecology are finally undone – so will we.
“You know your own skies in Manchester are very beautiful,” says the photographer, Sebastião Salgado, standing beside me. “I was walking by the canals. The volume, the light…they are very special here.”
Volume is one thing, of course, imagery another. More than any art form photography is contingent on its subject matter – what you choose to depict has great bearing on the quality of the work. In this way Salgado may be reckoned as one of the greatest practitioners in the history of the medium. Having made his name in the 1980s with Dantean images of
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