Labors work in a dump ground before the Earth Day in Kolkata, India, on April 21, 2018. Earth Day is commemorated annually on April 22. This year's celebration theme is "End Plastic Pollution". (Xinhua/Tumpa Mondal)
People work at dump ground before Earth Day in Kolkata, India
Source: Xinhua| 2018-04-21 20:17:22|Editor: ZX
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