- The Tetrahedron approach is an innovative tool designed to evaluate the sustainability of human activities through a four-step process involving key parameter identification, evaluation, diagram construction, and global sustainability estimation.
- It considers multiple sustainability dimensions—economic, social, and environmental—and has been applied in five case studies related to carbon capture and various production processes.
- The Tetrahedron is shown to be effective and reliable for quantifying sustainability, offering a holistic, simple, and adaptable alternative to existing environmental assessment methods.