Phenology, measuring a birch tree Phenology, measuring a birch tree https://www.globe.gov/c/message_boards/find_thread?p_l_id=18703103&threadId=104150873 2026-04-14T05:30:38Z 2026-04-14T05:30:38Z Phenology, measuring a birch tree Student 2 of Marina Gojković https://www.globe.gov/c/message_boards/find_message?p_l_id=18703103&messageId=104150872 2023-03-31T16:27:05Z 2023-03-31T16:27:05Z <img src="https://www.globe.gov/documents/18702582/0/IMG-78d6830c9528eb7e1b3f2c4c604f4193-V.jpg/d97b9b49-5a31-6e8b-bc8c-9f62cf581055?t=1680279926732&amp;imagePreview=1" /> Student 2 of Marina Gojković 2023-03-31T16:27:05Z