Environmental or pro-environmental behaviour is a critical area of interest in psychology, focusing on the factors influencing individuals' interactions with their environment. This article explores a conceptual framework that aids in understanding the diverse determinants of environmental behaviour. Additionally, it presents a methodological approach to promoting environmentally responsible actions in practice. Human behaviours, whether minor or significant, have varying degrees of environmental impact—positive or negative. Since individuals are in constant interaction with their surroundings, all human activities can be considered environmental behaviours. However, for academic and practical purposes, pro-environmental behaviour is distinguished as intentional actions aimed at minimizing environmental harm and promoting sustainability. By examining the psychological, social, and structural factors that drive such behaviours, this study contributes to the discourse on fostering a more sustainable future.