Isithombe - uCristopher Michel
Omunye wemiphumela emikhulu yokuguquka kwesimo sezulu ehlushwa yiplanethi yonke ukuncibilika kwendawo yase-Antarctic. Unyaka nonyaka i-Antarctica eshiwo ngenhla ibona kungasizi ngalutho njengoba izinguzunga zeqhwa zinyamalala futhi ukuncibilika kokufanayo kuyanda ngaphandle kokufika kwezixazululo.
Impela ngaphambi kwale panorama emnyama uzobe uzibuze kaningi, Kodwa kwenzekani lapho iqhwa lase-Antarctic licibilika?
Akuyona into entsha ukuthi iminyaka i-Antarctica ibhekene nemiphumela yokuguquka kwesimo sezulu futhi incibilika ngejubane elikhathaza ngempela. Ukuncibilika kusheshiswe kakhulu kangangokuba ngokusho kwabaphenyi leli zwekazi ngokwalo lizoba sengozini yangempela ngonyaka ka-2100. Uma kwenzeka ukuthi lokhu kwenzeke, ama-ice sheet ase-Antarctic angaba sengozini yokuwa bese ingaphezulu lisuswe ngemizuzwana embalwa.
Kungakho kunabacwaningi abaningi emkhakheni wesimo sezulu abafuna ngenkani izinyathelo ezilandelanayo ngokushesha okukhulu ukugwema ukufinyelela kulesi simo esiyinhlekelele. Ukwengeza ekuguqulweni kwesimo sezulu okukhulunywe ngakho ngenhla, kufanele kukhishwe ukukhishwa kwegesi engcolisa ukushisa ngoba ingenye yezimbangela ezinkulu ukuthi ukuncibilika endaweni yase-Antarctic kuye kwashesha ngokweqile eminyakeni yamuva.
Uma izinyathelo zingathathwa ngokuphuthuma futhi ngokushesha okukhulu, cishe eminyakeni engama-80 noma engama-90, ingxenye enkulu yobuso be-Antarctica inganyamalala ngenxa yokwenyuka kwamazinga olwandle nokuncibilika okungaphezulu izinguzunga zeqhwa endaweni. Yingakho kuyisikhathi esikahle sokuzimisela ngokushintsha kwesimo sezulu futhi uyeke ukubuka kwenye indawo sengathi akubalulekanga ngempela.