Ubushushu obuphakathi bomhlaba bungadlula kwi-1,5 degrees celcius ngaphambili kakhulu kunokuba bekulindelwe: ngonyaka ka-2026, njengoko kutyhilwe kuphononongo olwenziwe ngoososayensi abavela kwiZiko le-ARC lokuGqwesa kwiNkqubo yezeMozulu kwiYunivesithi. isuka eMelbourne (Australia), kwaye yapapashwa kwiphephancwadi »Iileta zoPhando ngeGeophysical».
Ukuba kuyenzeka, kungenxa yokuba iPacific Decadal Oscillation (IPO), engumlawuli wendalo wemozulu, yiya kwinqanaba elifanelekileyo okanye elifudumeleyo, ukukhawulezisa ukufudumala kwehlabathi.
Yintoni i-IPO?
Ixabiso lenyanga lesalathiso se-IPO ukusuka ngo-1900 ukuya kuMeyi 2006.
Umfanekiso-Iqela leempembelelo zemozulu
Yiyo iimeko zemozulu zokunxibelelana phakathi kweatmosfera kunye nolwandle olenzeka phakathi kwezinto ezifanayo 50º North kunye 50º South ye Pacific.. Inezigaba ezibini: imeko entle apho kubhaliswe khona amaqondo obushushu aphezulu, kunye nokubi. Eyokuqala ihlala ihlala phakathi kwe-1 kunye ne-5 iminyaka, ngelixa yesibini inokuhlala ukuya kuthi ga kwiminyaka engama-40 okanye nangaphezulu.
Ngaba inxulumene nokufudumala kwehlabathi?
Kwiminyaka yakutshanje, ukusukela ngo-2014 ukuya ku-2016, bekukho iirekhodi zobushushu ezibonisa ukuba isigaba eshushu okuso ngoku sinokudityaniswa nezi rekhodi zirekhodwayo. Okwangoku, uBen Henley, omnye wababhali besifundo, watsho njalo nangona ikwisigaba esingalunganga, uphando lwabo lubonisa ukuba isithintelo se-1,5ºC kunokwenzeka ukuba saphulwe ngo-2026.
Ukuyiphepha, »oorhulumente kuyakufuneka baphumeze imigaqo-nkqubo enganciphisi kuphela ukukhutshwa kwezinto kodwa ikwasusa nekhabhoni emoyeniU-Henley walatha.
Ukuba oku akuphumelelanga, ukunyibilika kweepali kuya kubangela ukuba inqanaba lenyuke, iintlango ziya kuba ngumqwebedu, kwaye imbalela enzima inokufunyanwa kumazantsi-ntshona e-United States naseMexico.
Ungasifunda isifundo apha (ngesiNgesi).