The book offers a comprehensive set of case studies that integrate mathematics into the context of sustainable development. These case studies address a variety of topics, from renewable energy and sustainable agriculture to public transportation and ecosystem preservation. Each case study provides a practical insight into how mathematics can be applied to solve real-world problems related to sustainability. The book aims to help both teachers and students understand the importance of mathematics in promoting sustainable practices. It offers opportunities for active and experiential learning, encouraging students to apply their mathematical knowledge to solving environmental and sustainability challenges. In addition, the case studies promote awareness of environmental issues and prepare students for future careers that require an understanding of these issues. Throughout the book, readers will find detailed examples, practical steps and discussions that highlight the relevance of mathematics in a world increasingly concerned with sustainability.