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Huang Chengde has conducted field trips along the Yellow River nearly every year since 1997. From the river source to its estuary, he’s explored almost every part of the river and encouraged many people to join him in the collective effort to protect the Yellow River.
Huang Chengde has conducted field trips along the Yellow River nearly every year since 1997. From the river source to its estuary, he’s explored almost every part of the river and encouraged many people to join him in the collective effort to protect the Yellow River.