Stefan Nertinger develops suitable methods and approaches for integrating Material Flow Cost Accounting (MFCA) and Carbon Footprint (CF) to help companies achieve sustainable success. His three integration models demonstrate innovative methodological connections between life cycle assessment and cost accounting approaches. The presented concept of the integrated tool as PDCA-in-PDCA in sustainability controlling and management offers the potential for continuous improvement and development of the company's sustainability performance and the generation of sustainable success.