Hanoi pioneered the drive, which spread to other cities and provinces across the country including Da Nang, Ho Chi Minh City, Can Tho, Hai Phong and Quang Ninh. Through various means of communication, such as riding bicycles, marching, delivering leaflets, and hanging posters, young volunteers helped raise public awareness of saving energy in response to climate change. Minister of Industry and Trade Vu Huy…