“…Monitoring metrics to assess the progress toward CE are being debated (Elia, Gnoni, & Tornese, ; Mayer et al., ; Pauliuk, ) and recent attempts to develop general metrics differ in aim and scope, resulting in diverse coverage and focus (Elia et al., ; Iacovidou et al., ; Linder, Sarasini, & van Loon, ; Pauliuk, ; Tecchio, McAlister, Mathieux, & Ardente, ). Given the wide range of perspectives, formats, and scales, Saidani, Yannou, Leroy, Cluzel, and Kendall () suggest a taxonomy of different CE indicators.…”