“…In general, the limits of the analysed researches refer to the sample size, the impossibility of the generalizability of data (Arvidsson and Stage, 2012;Bala et al, 2008;Diófási and Valkó, 2014;Faith-Ell, 2005;Mansi, 2015;Mashele and Chuchu, 2018;Leal Filho et al, 2019;Hall et al, 2016;Oruezabala and Rico, 2012;Pacheco-Blanco and Bastante-Ceca, 2016;Walker and Brammer, 2012;Young et al, 2016), how data is collected (Mansi, 2015;McMurray et al, 2014;Oruezabala and Rico, 2012;Pacheco-Blanco and Bastante-Ceca, 2016;Testa et al, 2012;Testa et al, 2016b;Young et al, 2016), lack of a customized approach depending on specific conditions (Aldenius and Khan, 2017;Arvidsson and Stage, 2012;Leal Filho et al, 2019;Oruezabala and Rico, 2012).…”