Ukuguquguquka kwesimo sezulu kulindeleke ukuthi kuqhubeke nokwenyusa amanani okudla kanye nokwehla kwamandla emali emhlabeni wonke esikhathini esizayo, ngokocwaningo olusha oluvela kososayensi kanye ne-European Central Bank. Umthelela uzohluka kodwa uzwakale yonke indawo, ikakhulukazi emazweni asathuthuka, kusho iphepha elishicilelwe ephephabhukwini iCommunications Earth and Environment ngoLwesine.
Isimo sezulu esibi kakhulu — okuhlanganisa amagagasi okushisa, isomiso kanye nezikhukhula — siya ngokuya sivama njengoba isimo sezulu siya sishisa, silimaza imikhakha ebalulekile yezomnotho, okuhlanganisa ukulima nokukhiqizwa kokudla.
Kulolu cwaningo olusha, abacwaningi abavela e-Potsdam Institute for Climate Impact Research (PIK) kanye ne-European Central Bank basebenzise ulwazi lomlando lwamanani nesimo sezulu emazweni angu-121 phakathi kuka-1996 no-2021.
Bathole ukuthi ukunyuka kwamazinga lokushisa ngenxa yokuguquguquka kwesimo sezulu kwabikezelwa ukuthi kuzonyusa izindleko zokudla emhlabeni wonke phakathi kwamaphesenti angu-1.49 no-1.79 minyaka yonke ngo-2035.
Umthelela wokushisa okuzayo nokushisa okudlulele ekwenyukeni kwamandla emali kukonke kungaba phakathi kwamaphesenti angu-0.76 nangu-0.91 ngaphansi kwesimo esihle kakhulu nesibi kakhulu.
“Sithola lobu bufakazi obuqinile bokuthi amazinga okushisa aphezulu, ikakhulukazi ehlobo, noma ezindaweni ezishisayo, abangela ukunyuka kwentengo ikakhulukazi emalini yokudla kodwa nasekwehleni okupheleleyo,” uMaximilian Kotz, omunye wababhali balo mbiko we-PIK, etshela i-AFP.
U-Kotz uthe umthelela wamanani okudla kanye nokwehla kwamandla emali ngenxa yokufudumala okuzayo kuzozwakala kakhulu “ezifundeni esezivele zishisa kakhulu” ikakhulukazi ezingxenyeni ezimpofu nezithuthukayo zomhlaba.
I-Afrika neNingizimu Melika kungaba amazwekazi athinteke kakhulu, ucwaningo lwathola.
Kodwa iNyakatho nenkabazwe ngeke igweme amanani aphezulu ngenxa yokuguquguquka kwesimo sezulu, kusho uKotz.
“Kulezo zindawo ezisenyakatho nenkabazwe — ikakhulukazi ehlobo — yilapho lezo zinto zizokwenzeka khona ngokuyinhloko. Nakuba emhlabeni wonke, zizosakazeka kakhulu unyaka wonke,” esho.
Lolu cwaningo luphinde lwathola ukuthi ukushisa okukhulu kulo lonke elaseYurophu ehlobo lika-2022 cishe kwabangela ukwehla kwamandla emali okudla kukhuphuke ngamaphesenti angu-0.67, okunomthelela omkhulu eningizimu yeYurophu.
“Ukuguquguquka kwesimo sezulu esikhathini esizayo kuzokhulisa ubukhulu balokhu kushisa okwedlulele, ngaleyo ndlela kukhulise umthelela wako ongase ube khona ekwenyukeni kwamandla emali,” kusho umbiko.