Izithintelo ezintsha ezinzima kwinani labantu abandwendwela i-Antarctica ziza kuphunyezwa njengoko umthamo wabatyeleli kwilizwekazi eliMhlophe uqhubeka nokunyuka.
Iinqanawa zokuhamba ngenqanawa ezithwele abantu abangaphezu kwama-500 aziyi kuvunyelwa ukuba zimise nabani na. Ngabakhenkethi abali-100 kuphela abaya kuvunyelwa elunxwemeni nangaliphi na ixesha, kwiinzame zokuthintela ukonakaliswa kwenkqubo yendalo eyodwa yommandla.
Imida, ekuvunyelwene ngayo ngamazwe angama-28 atyikitye isivumelwano seAntarctic, kuquka iUnited Kingdom, iza kumiselwa njengoko amanani abonisa ukuba inani labatyeleli liye lanyuka ukusuka kuma-6,700 1992 ngowe-45,000 ukuya kutsho ngaphezu kwama-XNUMX XNUMX.
Olo lwando lukhawulezileyo luye lwazothusa izazi ngemekobume ezifuna ukukhusela ummandla osesichengeni sokufudumala kwehlabathi apho kuhlala iindidi ngeendidi zoonombombiya neentini yaye oyindawo ebalulekileyo yokutya iminenga.
Izazinzulu zoyika ukuba abakhenkethi banokuthi bengaqondanga bazise izinto eziphilayo ezihlaselayo, njengeempuku, izinambuzane nezityalo, ezinokutshabalalisa lo mhlaba uthambileyo umkhenkce.
Amanyathelo asekwayilelwe ukuthintela iintlekele zohlobo lweTitanic ngokulahleka okukhulu kobomi. Uninzi lweenqanawa ezikuloo ndawo azixhotyiswanga ukumelana neemeko ezinzima kunye nobungozi be-icebergs, umngcipheko okhulayo njengoko utshintsho lwemozulu lubangela ukuqhekeka komkhenkce. Kukho iinkxalabo malunga nobunzima bokukhupha iilayini ezithwele abakhweli abaphakathi kwama-2,000 nama-3,000.
Ngo-2007 ngaphezu kwe-150 abakhweli kunye nabasebenzi kwinqanawa yokuhamba ngenqanawa i-Explorer bahlangulwa kwizikhephe zokusindisa ubomi kumanzi abandayo emva kokuba inqanawa igxunyekwe ngumkhenkce kwaye yazika, i-oyile ivuza elwandle.
Kwinyanga ephelileyo abantu abangaphezu kwe-100 ababevaleleke kwinqanawa yokuhamba ngenqanawa, kubandakanya ne-17 Britons, kuye kwafuneka bakhutshiwe emva kokubaleka emhlabeni kufutshane nesiseko somkhosi wase-Argentina. Iingcali ziye zabhala iziganeko ezintandathu kwisithuba nje esingangonyaka ezibeka esichengeni sosulelo olukhulu.
Ekuqaleni kwale nyanga ibhulorho yomkhenkce eyi-40km edibanisa ishelufu yomkhenkce ubungakanani beJamaica ukuya kwiziqithi ezibini zaseAntarctica yawa. Le bhulorho kucingelwa ukuba yayiyinxalenye ye-13,000 sq km ye-Wilkins Ice Shelf leyo izazinzulu ziqikelela ukuba ngoku inokuqhekeka ibe ngamawaka eentaba zomkhenkce.
Izithintelo ezitsha kwavunyelwana ngazo kwindibano yokubonisana yesivumelwano se-Antarctic yama-32 eBaltimore, eMaryland, ekupheleni kweentetho ezinde iiveki ezimbini.
