Life cycle assessment LCA is internationally accepted as a core topic in the field of environmental management in various industries for obtaining a complete picture of the environmental impacts of products or processes. In contrast to other types of environmental management tools or sustainability assessment methods LCA methodologies take a holistic approach to include all relevant processes starting from the extraction of natural resources to various manufacturing stages that lead to the final product.Following an evidenceapproach LCA is underpinned by quantitative methodologies to study realworld problems and uncover ampampquothiddenampampquot impacts beyond the conventional boundary of a singlestage manufacturing system to develop sustainable strategies that consider regional or global production chains.This book offers multidisciplinary perspectives of new LCA developments and applications spanning from data variability to ecosystem services plus the evaluation of the net greenhouse gas from Carbon Capture and Utilization CCU methods and waste management. Perspectives of green chemistry principles via LCA combined with life cycle atom economy approaches are explored.