These remarkable photographs show the dramatic changes that have occurred to one of nature’s splendours, the glacier. All of these glaciers have melted and retreated since the original photographs were taken. Where there was ice many metres thick, there is now debris, sediment and stagnation. In some cases, the glaciers have disappeared altogether. The land they once covered has become pasture, lakes or woodland. These photographs are known as ‘glacier pairs’ or ‘repeat photographs’. They are taken from the same vantage point or field of view, but years or decades apart. They are the result of painstaking work by scientists who are documenting how climate change is affecting glaciers. By pairing historical images with modern photographs, they are giving global warming a face.
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