<prompt> Fingqa isihloko: Umngcele weqhwa wase-Antarctica uyanyamalala ngenxa yokufudumala kwamanzi olwandle, futhi kule minyaka eyishumi edlule kuye kwaba nokwanda okukhulu kokulahleka kweqhwa. Lokhu kuboniswa ucwaningo olusha oluye lwahlanganisa iminyaka engu-18 yokwehla kwamazinga eqhwa elivela emaqenjini amathathu ahlukahlukene amasathelayithi. Abacwaningi bathi ezinye izinguzunga zeqhwa eNtshonalanga Antarctica ziye zalahlekelwa amaphesenti angu-18 omthamo wazo eminyakeni eyishumi edlule. Skrolela phansi ukuze ubone ividiyo. Izinga lokuguquka kobukhulu amamithaishumi leminyaka linemibala esukela ku -25 ukuncibilika kuya ku 10 ukuqina. Imibuthano imelela amaphesenti obubanzi obulahlekile obomvu noma obutholakalayo obomvu eminyakeni engu-18. Umbuthano ophakathi ubonisa indawo engahlolisiswa iziphuphutheki. Imininingwane yesathelayithi kusukela ngo - 1994 kuya ku - 2005. Ososayensi bathi u-2012 ubonisa ngokucacile ukwehla okusheshayo okungase kusheshise ukwenyuka kwamazinga olwandle emhlabeni wonke. Lokhu okutholakele, okushicilelwe namuhla kumagazini i-Science,. kuvela phakathi kokukhathazeka kososayensi abaningi ngemiphumela. yokushintsha kwesimo sezulu emhlabeni wonke ezifundeni ezikude, ezikude zomhlaba. Phakathi nengxenye yokuqala yenkathi yocwaningo, kuze kube cishe ngo-2003, ukwehla okuphelele kwevolumu ezungeze i-Antarctica kwakuncane, neWest. Ukulahleka kwe-Antarctica kucishe kulinganiswe nokuzuza eMpumalanga. I-Antarctica. Ngemva kwalokho, ukulahlekelwa kwaseNtshonalanga kwashesha futhi ukuzuza kwaseMpumalanga kwaphela. Kuye kwaba neqhwa eliningi elilahlekile. I-Antarctica inezinguzunga zeqhwa ezintantayo, kusho isazi seqhwa uHelen. UFricker weScripps Institution of Oceanography esikhungweni sezindiza sase-United States. IYunivesithi yaseCalifornia, eSan Diego. Iqhwa lifakwa emgodini weqhwa yiziqhingi zeqhwa eziphuma ezwekazini nangokwehla kweqhwa. Iqhwa lilahleka lapho izintaba zeqhwa ziqhekeka ngaphambili kweqhwa, futhi ngokuncibilika kwezinye izindawo njengoba amanzi afudumele egelezela emgodini wasolwandle ngaphansi kweqhwa. Ngaphansi kwezinye izinguzunga zeqhwa, amanzi abandayo futhi amasha ancibilikile akhuphuka aze afinyelele eqophelweni lapho aphinde aqabuleke khona ezinguzungwini zeqhwa. I-Crosson Ice Shelf e-Amundsen Sea kanye ne-Venable. I-Ice Shelf yasolwandle iBellingshausen, zombili eziseNtshonalanga Antarctica,. ngayinye yancipha cishe ngamaphesenti angu-18 phakathi nenkathi yocwaningo. Ukushintsha kwesimo sezulu kungenza ukudla esikudlayo kunambitheke kabi,...  <response>: Ososayensi bahlanganisa imininingwane yeminyaka engu-18 yokuncibilikiswa kweqhwa etholakala emishinini emithathu yesathelayithi. Kuze kube ngo - 2003, ukulahlekelwa eNtshonalanga ye - Antarctic kwakulinganiswa nokuzuza eMpumalanga ye - Antarctic. Kodwa ngemva kwalokho, ukulahlekelwa kwaseNtshonalanga kwashesha futhi ukuzuza kwaseMpumalanga kwaphela. Ezinye izinguzunga zeqhwa e-Amundsen zingase zinyamalale phakathi naleli khulu leminyaka. 