The document discusses how to communicate sustainability efforts without "greenwashing" through verification, measurement, and reporting. It outlines common "sins of greenwashing" like hidden trade-offs or lack of proof. Verification by independent third parties helps prove compliance with standards through labels or endorsements. Regular measurement is important to evaluate progress using indicators. Reporting tools like GRI and ISO 14001 standards can help with transparency if used to show a whole systems perspective. The best approach is to take meaningful sustainability actions and then discuss accomplishments through sound monitoring and reporting.