This book overviews the sustainable production and diverse applications of Polyhydroxyalkanoates (PHAs), with a special focus on agriculture, industry, and the environment. It provides a comprehensive overview of the latest strategies to overcome production challenges and enhance commercial feasibility. By exploring the potential of cost-effective raw materials and genetically engineered microbes, this volume highlights innovative approaches to ferment biowastes efficiently. The book also examines how blending different PHAs and modifying their chemical structures can expand their applications, making it a must-read for those interested in biotechnological advancements. Key concepts covered include the development of biosensors, bio-indicators, and biofuels, as well as the role of biopolymers in environmental bioremediation. The chapters are organized to provide insights into technological bioprocesses that can be translated into globally competitive business proposals. Readers will discover contributions from renowned scholars who probe critical questions about sustainable PHA production and its applications in various industries. This book is essential for researchers, scholars, and practitioners in biotechnology, environmental science, and agricultural engineering. It offers valuable information for those looking to develop eco-friendly solutions and sustainable business models. Whether you are an academic or a professional in the field, this volume provides the latest research and practical insights to help you stay ahead in the rapidly evolving landscape of biopolymers.