These are two images of the Mer de Glace Glacier on Mont Blanc in Switzerland. The image on the left was taken in 1919 by a swiss pilot and photographer, and the corresponding image on the right shows the glacier today. The two images look like they were photographed from the exact same location in the air despite being taken 100 years apart. This was achieved through a process called monoplotting and using peaks, spires and other significant landmarks on the mountain to find the geolocation of where the original photographs were taken. The image today shows a significant reduction of size in the glacier today as opposed to 1919, and scientists believe the rate of ice melt at this glacier will continue to speed up. This image is important as it shows how significantly climate change affects environments, and how glaciers all over the world are in the process of slowly disappearing
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