“Trồng rừng vững đất” (Afforestation for a better land) is a project of the Sống Foundation’s Green Happiness Program, now underway in Vinh Chau commune, Soc Trang province. To date, the project has planted 81,400 white mangrove trees. Each tree rising from the deserted mudflats is a reminder of "green happiness" that grows day by…