Estonian-inspired World Cleanup Day brings together 20 million people cleaning their countries
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The fourth World Cleanup Day engages people from 180 countries
Case study: World Cleanup Day
20 mln people from 180 countries join World Cleanup Day initiated by Estonia
World Cleanup Day 2021 is on 18th September! Get ready, set, go!!! - YouTube
Estonian-inspired World Cleanup Day brings together 20 million people cleaning their countries
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Estonian-inspired World Cleanup Day brings together 20 million people cleaning their countries
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Estonia leading a World Cleanup Day — staying stubborn and uniting people — Estonia
Estonian-inspired World Cleanup Day brings together 20 million people cleaning their countries
The fourth World Cleanup Day engages people from 180 countries
