In today’s world of digital upheaval and shifting climate, marketers face a rare chance to reimagine approaches that care for the planet and win in the market. The chapter “The Digital Green Frontier: Using Technology for Sustainable Marketing” explores how cutting-edge tech is changing old-school marketing tactics. These include the Internet of Things (IoT), blockchain artificial intelligence (AI) big data analysis, and eco-friendly cloud computing. It delves into how digital tech can boost ethical trackable supply chains, shrink carbon footprints boost resource use, and improve openness. The chapter also looks at how green thinking shapes what buyers do and how companies can use online platforms to build real, purpose-driven brands that click with people who care about the earth. Through real-life examples, strategy blueprints, and deep dives, the chapter aims to give scholars, marketers, and rule-makers insights on how to harness the digital world for green growth. In the end, it paints sustainable marketing not just as the right thing to do, but as a key battleground in the digital economy. This chapter explores how businesses can harness digital tools to shift their marketing approaches in an eco-friendly and sustainable direction. It looks into the incorporation of cutting-edge tech like blockchain big data, and AI to boost environmental responsibility, productivity, and openness. By blending theory with real-world use, the chapter presents inventive techniques to cut carbon footprints, make the most of resources, and build trust among green-minded customers.