On the 13th November 2023, St Theresa College Middle School was awarded the Green Flag. This in recognition for the good work performed by the EkoSkola students under the guideship of their link teachers Ms Jessica Zahra, Ms Charlene Magro and Ms Sarah Scicluna. Collectively they worked on various projects in order to promote sustainable development. Some projects included the restoration of a derelict well for rainwater harvesting, the harvesting of school olive trees and raising awareness of local animal shelters and their importance in promoting good care of animals.