This book proposes net negative ideas and technologies in key economic sectors and services. Particularly, it discusses renewable-based materials and technologies, highlighting various pathways and processes to achieving net negative targets and addressing climate concerns, with case studies to demonstrate their applications. Two dozen case studies cover decarbonization solutions, such as waste-to-energy, regenerative farming, alternative refrigerants, and bio-based plastics, etc. Written to be a valuable resource for businesses, academics, and policy makers who are looking for renewable-based solutions in a variety of sectors, and active in contributing to net negative emissions targets for keeping the atmospheric CO2 eq. levels below the dangerous range.