Sudarmaji, E. 2026. Bridging Standards and Sensors: A Systematic Literature Review and Quantitative Evidence Synthesis of Carbon Accounting Methods for Energy Efficiency Across Terrestrial, Marine, And Built-Environment Ecosystems. Engineering And Technology Journal. 11, 08 (Aug. 2026), 11123–11132. DOI:https://doi.org/10.47191/etj/v11i08.06.