At the beginning of the 20th century, Arctic glaciers were the most mysterious and enigmatic wonders of nature. Over 100 years of investigation, exploration and misuse, glaciers have developed into a vivid testament of the impacts of climate change. Christian Åslund, a photojournalist form Sweden, has collected and combined early photos of glaciers in Svalbard, from the Norwegian Polar Institute and contrasted them with his from the same locations since 2002. The transformations are incredible. Using his photo series, he is campaigning for #MyClimateAction, a National Geographic crusade that fosters discussion on climate change, and also as a demonstration against Norwegian oil companies mining in the melting Arctic.