On May 27, 2022, Asst.Prof.Dr.Duanghathai Buranajaroenkij, Deputy Director of Research and Academic Services together with Ms. Khemmika Klingesorn, Public Relations Officer, Institute of Human Rights and Peace Studies, Mahidol University join in the tree planting activity organized by Mahidol University Sustainability on the occasion of World Environment Day 2022 at Mahidol University (Salaya).