On Tuesday, December 7, 2021, students of Psychico College Junior High School UNESCO club, decided to use waste materials they found in the Technology laboratory in a creative way. They were inspired by a previous activity they were involved with regarding the 17 Sustainable Development Goals of the United Nations, one of which is the climate. By using these materials, our students created Christmas ornaments, which they used to decorate a Christmas tree on the ground floor of the Alexandra Martinou building.