Communicating sustainability externally is important for a variety of reasons, such as showcasing your sustainability credentials, attracting and retaining customers and partners, and enhancing your brand image. It can also help you raise awareness, influence opinions, and drive change in your industry and society. To effectively communicate sustainability externally, consider developing a sustainability report, website, or brochure to highlight your sustainability policies, programs, and outcomes. You can also use social media, blogs, podcasts, or videos to share your sustainability stories, insights, and achievements. Additionally, participating in sustainability events, forums, or networks can help you network and collaborate with other sustainability leaders and stakeholders. Finally, seeking sustainability certifications, accreditations, or awards can validate and differentiate your sustainability performance.