On behalf of the Forest Research Institute – BAS, we thank all our colleagues, partners and guests that joined us to celebrate the Earth Day and together we contributed to the initiative to plant 150 trees! The directors Assoc. Prof. Dr. Miglena Zhiyanski – Forest Research Institute (FRI) and Cor. Member Nikolay Miloshev – National Institute of Geophysics, Geodesy and Geography (NIGGG), the Deputy Chairman of BAS Cor. Member Kostadin Ganev and Cor. Member Dimitar Ivanov opened the event. Scientists and employees of the Bulgarian Academy of Sciences, NIGGG and FRI took active participation and initiated the afforestation campaign in the scientific complex of BAS. Special thanks to Rossima Company for supplying FISKARS tools and to Eng. Damyan Damyanov and the colleagues from the South-West State Enterprise for the provided saplings and collaboration in this event.