Green IT has been identified as a contributing factor in maintaining a green environment. However, past studies have focused mainly on Green IT practised by IT vendors or organizations rather than by individual consumers. Malaysia is a developing nation with high computer penetration. Almost every citizen is owns several computers, from desktops, tablet PCs, laptops, notebooks to smartphones. This contributes to unsustainable computer production, consumption, and disposal patterns. Greenhouse gas (GHG) emission resulting from computer life cycles can be reduced if individuals acquire, use, and dispose computers in a responsible manner. Hence, this study investigates the antecedents of individuals’ responsible consumption behaviour. A research framework was developed through integrating several theories, i.e. Theory of Planned Behaviour, Value-Belief-Norm, and Theory of Interpersonal Behaviour. This study contributes to existing knowledge in the fields of information systems, consumer research, and sustainability, through the development of a theoretical framework that identifies the key factors that influence responsible consumption behaviour. The findings will enable policy makers to design programmes that could influence behavioural change and stimulate responsible consumption behavior, in order to prevent further degradation of the natural environment.