“…There are recent Brazilian studies focused on the viability of energy utilization of landfi ll gas (Medeiros et al, 2017;Oliveira et al, 2017;Silva et al, 2017;Pin et al, 2018;Santos et al, 2018) and some present considerations on CDM mechanisms (Crovador et al, 2016;Torres, Fermam, Sbragia, 2016;Cruz, Paulino, Paiva, 2017;Fernandez et al, 2017;Mori-Clement et al, 2019).…”