Environmental psychology is a field of study that examines the complex, reciprocal relationship between individuals and their physical surroundings, both built and natural. It investigates how environmental factors influence human behavior, cognition, emotion, and well-being, and conversely, how human actions impact the environment. Characterized by its interdisciplinary approach, it applies psychological theories and research methods to understand and address real-world environmental issues, aiming to inform environmental design, planning, management, and promote sustainable behavior.