“…This is due to high population growth, both caused by birth and urbanization. The main environmental problems in major cities in Indonesia include reduced water catchment areas, shrinking green open areas, damage to blue open areas (rivers, waterways and coastal waters), underground water exploitation, coastal abrasion due to loss of mangrove forests on the north coast, and a bad city drainage system (Gabarda-Mallorquí, Fraguell, & Ribas, 2018;Lazaridou, Michailidis, & Trigkas, 2018). This has become a special focus for environmentalists, many efforts can be made to minimize the adverse effects of the environment (Cooper, Larson, Dayer, Stedman, & Decker, 2015;Steinhorst & Klöckner, 2017).…”