Ngokuzayo lapho uvula umpompi, ugcwalise igedlela, futhi uzenzele inkomishi yekhofi, cabangela ukuthi amanzi abaluleke kangakanani ekuphileni kwethu. Kubonakala sengathi sisebenzisa amanzi ikakhulukazi ukuphuza, ukugeza nokugeza. Kodwa ingabe wake wacabanga ukuthi angakanani amanzi akhiqizwayo ukuze kukhiqizwe ukudla esikudlayo, izingubo esizigqokayo nendlela yokuphila esiyiphilayo?
Ngokwesibonelo, inkomishi eyodwa yekhofi ekuseni idinga amalitha amanzi ayi-140! NgokweNhlangano Yezokudla Nezolimo yeNhlangano Yezizwe Ezihlangene, lena yimali edingekayo ukuze kutshalwe, kugaywe futhi kuhanjiswe ubhontshisi owanele inkomishi eyodwa.
Ngenkathi sithenga esitolo segrosa, asivamile ukucabanga ngamanzi, kodwa lesi sisetshenziswa esibalulekile siyingxenye eyinhloko yemikhiqizo eminingi egcina isemakalishini ethu okuthenga.
Angakanani amanzi angena ekukhiqizeni ukudla?
Ngokwezilinganiso zomhlaba wonke, nansi inani lamalitha amanzi adingekayo ukuze kukhiqizwe ikhilogremu eyodwa yalokhu kudla okulandelayo:
Inyama yenkomo - 15415
Amantongomane - 9063
IWundlu - 8763
Ingulube - 5988
Inkukhu - 4325
Amaqanda - 3265
Izitshalo zokusanhlamvu - 1644
Ubisi - 1020
Izithelo - 962
Imifino - 322
Ukuchelela ngenkasa kwezolimo kubalelwa ku-70% wamanzi asetshenziswa emhlabeni jikelele. Njengoba ubona, amanzi amaningi asetshenziswa ekukhiqizeni imikhiqizo yenyama, kanye nokutshala amantongomane. Kunesilinganiso samalitha angu-15 amanzi ngekhilogremu ngayinye yenyama yenkomo - futhi iningi lawo lisetshenziselwa ukutshala ukudla kwezilwane.
Uma kuqhathaniswa, izithelo ezikhulayo zithatha amanzi amancane ngokuphawulekayo: amalitha angama-70 i-apula ngalinye. Kodwa uma ijusi lenziwa ngezithelo, inani lamanzi asetshenzisiwe liyakhula - lifika ku-190 amalitha engilazi ngayinye.
Kodwa ezolimo akuyona yodwa imboni ethembele kakhulu emanzini. Umbiko ka-2017 ubonisa ukuthi ngonyaka owodwa, izwe lezemfashini ladla amanzi anele ukugcwalisa amachibi okubhukuda angange-Olympic angu-32 million. Futhi, ngokusobala, ukusetshenziswa kwamanzi embonini kuzokhuphuka ngo-2030% ngo-50.
Kungathatha amalitha angu-2720 amanzi ukwenza isikibha esilula, kanye namalitha acishe abe ngu-10000 ukwenza ipheya elilodwa lamajini.
Kodwa amanzi asetshenziswa ukwenza ukudla nezingubo ayiconsi ebhakedeni uma kuqhathaniswa namanzi asezimbonini. Emhlabeni jikelele, izimboni zamandla kagesi ezibaselwa ngamalahle zisebenzisa amanzi amaningi njengabantu abayizigidi eziyizinkulungwane ezingu-1, kanye namabhiliyoni angu-2 esikhathini esizayo uma zonke izimboni zikagesi ezihleliwe ziqala ukusebenza, ngokusho kweGreenpeace.
Ikusasa elinamanzi amancane
Ngenxa yokuthi amanzi eplanethi awapheli, inani okwamanje elisetshenziswa izimboni, abakhiqizi kanye nabathengi alihlali liqinile, ikakhulukazi ngokukhula kwabantu emhlabeni. Ngokusho kwe-World Resources Institute, kuzoba nabantu abayizigidi eziyizinkulungwane ezingu-2050 emhlabeni ngo-9,8, okuzokwandisa kakhulu ingcindezi kwizinsiza ezikhona.
I-World Economic Forum Global Risk Report ka-2019 ibeka inkinga yamanzi njengomthelela wesine ngobukhulu. Ukuxhashazwa kwamanzi akhona, ukwanda kwabantu kanye nemithelela yokuguquguquka kwesimo sezulu kubhubhisa umhlaba ekusaseni lapho isidingo samanzi sidlula ukunikezwa. Lesi simo singadala ukungqubuzana nobunzima njengoba ezolimo, amandla, izimboni kanye nemizi iqhudelana ngamanzi.
Izinga lenkinga yamanzi emhlabeni likhulu kakhulu, ikakhulukazi uma kubhekwa ukuthi abantu abayizigidi ezingama-844 basantula amanzi okuphuza ahlanzekile futhi abayizigidi eziyizinkulungwane ezingama-2,3 abanazo izindawo zokuthuthwa kwendle njengezindlu zangasese.