Time-lapse satellite pics of melting glaciers, deforestation shared by Google

To mark the Earth Day, Google Doodle has shared time-lapse satellite images showing melting glaciers, retreating snow cover, deforestation and coral bleaching. It is created from real imagery from Glacier retreat at the summit of Mount Kilimanjaro in Africa, Sermersooq Glacier retreat in Greenland, Great Barrier Reef in Australia and Harz Forests in Germany.