To celebrate the 19th edition of Tree Day in Bielsko-Biała in Silesia, Klub Gaja put on a program aimed at educating children on sustainability and increasing the ecological awareness of the community in the field of environmental protection and climate change, supported by real actions – planting and protecting trees. Students took part in educational workshop about wild animals in the city, including birds and small mammals. Workshop participants built nesting boxes for birds and squirrels. The students took the boxes to their schools, where they will be hung in the school gardens.