Book excerpt: This book covers the latest developments in life cycle assessment LCA both in terms of methodology and its application in various research areas. It includes methodological questions as well as case studies concerning energy and mobility, materials and engineering, sustainable construction and future technologies. With numerous research articles from leading German and Austrian research institutes, the book is a valuable source for professionals working in the field of sustainability assessment, researchers interested in the current state of LCA research, and advanced university students in various scientific and technical fields. Chapter “Life Cycle Assessment of a Hydrogen and Fuel Cell RoPax Ferry Prototype” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.