“Green” loan – a “green” financing instrument Alina Gulzhan, Dinara Kerimkulova, Zeinegul Yessymkhanova, Aigul Orazbayeva and Aigul Alibekova E3S Web of Conf., 402 (2023) 08036 Published online: 19 July 2023 DOI: 10.1051/e3sconf/202340208036