The need for sustainability is crucial for all aspects of society, as framed by the Sustainable Development Goals (SDGs) of the United Nations and increasingly prioritized by Governments and Global Organizations. Thanks to digital transformation, most organizations in all sectors are facing incredible challenges to embrace sustainability as related to their software portfolios. Similarly, they struggle in identifying the opportunities that software sustainability can bring. This talk introduces the role of software for sustainability and related research. It also discusses some challenges and opportunities for modern organizations in both research and practice, among which how to make sure the organization understands the necessity for sustainability. Examples from collaboration with various industries and sectors are used to illustrate the main takeaways.