What is Green Software?

Global warming and the climate crisis necessitate collective efforts from all sectors, including the Information and Communications Technology (ICT) sector, which significantly contributes to global greenhouse gas emissions due to high energy consumption. Green Software emerges as a solution, aiming to develop and utilize software that is sustainable, energy-efficient, and environmentally friendly, thereby reducing the carbon footprint associated with software and its supporting infrastructure. The discipline involves optimizing software performance, reducing hardware requirements, and utilizing renewable energy sources, with principles such as energy efficiency, carbon awareness, and demand shaping guiding its development. The need for green software is driven by the ICT sector's rising emissions, business and regulatory pressures, and the growing consumer preference for eco-friendly products. Despite challenges like lack of awareness and measurement complexity, organizations such as Microsoft, Accenture, and Google are leading the charge in adopting green software practices. As climate change accelerates, the demand for sustainable software will increase, making green software a standard expectation, not a niche concern, and offering a pathway for the digital world to contribute to environmental sustainability.