What is Phenology? What can we observe about seasonal changes? Objective 1. Understand what climate change is. 2. Understand how climate change conditions impact phenology Background Phenology is study of recurring plant and animal life cycle events, or phenophases, such as leafing and flowering, maturation of agricultural plants, emergence of insects, and migration of birds. Essentially, it is the study of nature’s calendar. Phenology observes the relationship between: 1) discrete phenological events, 2) events and the season, 3) events and local weather conditions, and 4) events and climatic Duration: 60 Minutes.