Akarere k'ibiyaga bigari bya Kano ni agace gato k'ibiyaga bigari bya Afurika, birimo ikiyaga cya Victoria, ikiyaga cya Tanganyika, ikiyaga cya Malawi, n'ibiyaga bito bito. Aka karere gahura n’ibibazo byinshi by’ikirere, nka:

. Ibi bifite ingaruka ku buzima bwabantu, ubuhinzi, ibinyabuzima bitandukanye, n’amazi.
- ** Guhindura imiterere yimvura **: Aka karere kagabanutseho imvura mugihe cyimvura kirekire (Werurwe-Gicurasi) ndetse niyongera ryimvura mugihe gito cyimvura (Ukwakira-Ukuboza). Ibi bigira ingaruka kumazi no kuboneka kwamazi, hamwe nigihe n'umusaruro wibihingwa.
- ** Ibihe bikabije by’ikirere **: Aka karere gakunze kwibasirwa n’amapfa, imyuzure, inkangu, n’umuyaga, bishobora gutera kwimuka, kwangirika, n’indwara. Urugero, mu 2020, imvura nyinshi yateje imyuzure n’isenyuka ryibasiye abantu barenga miliyoni 6 bo mu karere.
- ** Imihindagurikire y’ikiyaga **: Ibiyaga byo muri ako karere byumva ihinduka ry’imvura n’imvura, bishobora guhindura uburinganire bw’amazi n’ibidukikije. Kurugero, ikiyaga cya Victoria, ikiyaga kinini muri kariya karere, cyabonye amateka maremare kandi maremare mumyaka mirongo ishize.

Izi mbogamizi z’ikirere ziteza ingaruka zikomeye ku mibereho, kwihaza mu biribwa, ubuzima, n’imibereho myiza y’abaturage bo mu karere, cyane cyane abakene n’abatishoboye. Niyo mpamvu, hakenewe ingamba zo kurwanya imihindagurikire y’ikirere no kugabanya ingaruka zo guhangana n’abaturage ndetse n’ibidukikije mu karere. Bimwe mubisubizo bishoboka harimo:

.
- ** Gutezimbere imicungire y’ibiza **: Ibi bikubiyemo kunoza uburyo bwo kuburira hakiri kare, kwitegura, gusubiza, hamwe nubushobozi bwo gukira, ndetse no kugabanya guhura n’ingaruka ziterwa n’ibiza.
- ** Kubungabunga no kugarura umutungo kamere **: Ibi bikubiyemo kurinda no kugarura amashyamba, ibishanga, n’ibindi binyabuzima, bishobora gutanga inyungu nyinshi nko gukwirakwiza karubone, kugenzura amazi, kubungabunga urusobe rw’ibinyabuzima, no gutera inkunga imibereho.
- ** Gushyigikira iterambere rya k