Wasu matasa sun himmantu wajen yaki da gurbatar muhalli a jihar Kano da ke Najeriya, a karkashin jagorancin wata kungiyar mai suna "Make Kano Green." Matasan sun dukufa wajen dashen itatuwa masu dumbin yawa, domin inganta muhalli da dawo da martabar shuka bishiyu a Kano.