“…With regard to barriers to adoption, the literature identifies various aspects, such as the costs involved [17,24,87,88], lack of knowledge of the standard, and a lack of skills and abilities required for its implementation [89], as well as difficulties in integrating these protocols into the organizational culture of firms [57,71]. Further barriers cited include excessive bureaucracy and paperwork [41,90,91], a lack of knowledge of environmental practices and techniques [32,92,93], a lack of resources and/or commitment on the part of the firm's executives, and the reluctance of employees and middle management [40,91,92,94]. We should, however, qualify the latter by pointing out, as mentioned above in the section describing motivations, that there is ample literature to show that managers and employees play a positive role in the adoption of EMSs [10,26,29,94].…”