How did a once mining-dependent village transform into a trending tourist destination? How is marine plastic waste being turned into new resources? Can bamboo lead the fight against plastic pollution? Why have volunteers safeguarded the West Lake for over a decade? And how does the Changlongshan "water battery" act as a massive clean-energy power bank? Follow Erik Solheim, chairman of the Europe-Asia Center and former UN under-secretary-general, as he uncovers how China is transforming ecological challenges into sustainable solutions.