Every spring, winds can carry fine particles from the drylands of Mongolia and northern China across East Asia. In South Korea, these events are known as yellow dust, or hwangsa, and can turn the sky hazy while raising airborne particulate concentrations. According to the Journal of Rural Development , South Korea and Mongolia implemented the Greenbelt Plantation Project from 2007 to 2016 to combat desertification and reduce environmental damage from yellow dust and sandstorms. The project included tree planting in Mongolia, training programs for experts, and technology exchange with Mongolia.
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