Greenland’s Zachariæ Isstrøm entered a phase of accelerated retreat in 2012, and by 2015 the glacier was losing 5 billion tons of ice per year. This time series shows the glacier’s retreat during the 2015 melt season. The animation is composed of 26 natural-color images, acquired from May 19 through October 1, 2015, with Operational Land Imager on Landsat 8. Read more at

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