To mark the 25th anniversary of the seminal book For Most of It I Have No Words—photographs by Simon Norfolk, published in 1998, that document the human remnants of genocide—the Centre of British Photography is presenting six new exhibitions that focus on landscape and the environment. The subjects range from sites of historical conflict to the environmental effects of industry. Artist Mandy Barker’s exhibition “Plastic Soup,” for example, uses a photographic-collage to represent the island of plastic waste known as the Great Pacific Garbage Patch. Willie Doherty’s quiet photo of a moss-covered barricade in rural Northern Ireland carries the memory of a violent past, specifically the conflict known as the Troubles. The exhibitions take up all three floors of the Centre and even the titles—“Landscape Trauma,” “Natural Histories,” “Human Nature”—suggest the way mankind and the Earth mirror each other. —Paulina Prosnitz