Phenology is the study of the timing of recurring biological events in relation to climatic and environmental factors. These events can include the timing of plant flowering, bird migration, and insect emergence. Phenological observations can provide valuable information about the effects of climate change on ecosystems and help predict the impacts on biodiversity, agriculture, and human health. Researchers in the field of phenology use various tools and techniques such as remote sensing, citizen science, and statistical modeling to track and analyze these seasonal patterns. Overall, phenology plays a critical role in understanding and predicting the responses of organisms to changing environmental conditions.