Imikhawulo emisha eqinile enanini labantu abavakashela i-Antarctica izosetshenziswa njengoba inani labavakashi eZweni Elimhlophe liqhubeka nokukhuphuka.
Imikhumbi yokuhamba ngezinyawo ethwele abagibeli abangaphezu kuka-500 izonqatshelwa ukuthi ihlale noma ngubani. Izivakashi ezingu-100 kuphela okufanele zivunyelwe ogwini nganoma isiphi isikhathi, ngomzamo wokuvimbela umonakalo endaweni eyingqayizivele yemvelo.
Imingcele, okwavunyelwana ngayo amazwe angu-28 asayine isivumelwano sase-Antarctic, kuhlanganise ne-UK, izobekwa njengoba izibalo zibonisa ukuthi izivakashi ziye zanyuka zisuka ku-6,700 1992 ngo-45,000 zaya ezingaphezu kuka-XNUMX XNUMX.
Ukukhula okusheshayo okunjalo kuye kwathusa izazi zemvelo ezizimisele ukuvikela indawo esongelwa ukufudumala kwembulunga yonke okuyikhaya lezinhlobo eziningana zamaphengwini nezinja zamanzi futhi eyindawo ebalulekile yokudla imikhomo.
Ososayensi besaba ukuthi izivakashi zingase zilethe izinhlobo zezinto eziphilayo ezihlaselayo zingaqondile, njengamagundane, izinambuzane nezitshalo, ezingase zicekele phansi indawo entekenteke eyiqhwa.
Izinyathelo futhi zenzelwe ukuvimbela izinhlekelele zesitayela se-Titanic ngokulahlekelwa okukhulu kwempilo. Imikhumbi eminingi kule ndawo ayikuhlomele ukubhekana nezimo ezinzima kanye nezingozi zezinguzunga zeqhwa, ingozi eyandayo njengoba ukuguquka kwesimo sezulu kubangela ukuqhekeka kweqhwa. Kunokukhathazeka ngobunzima bokukhipha amalayini athwala abagibeli abaphakathi kuka-2,000 no-3,000.
Ngo-2007 abagibeli nabasebenzi abangaphezu kuka-150 emkhunjini ohamba ngomkhumbi i-Explorer batakulwa ezikebheni zokuhlenga emanzini abandayo ngemuva kokuba umkhumbi ubhodlozwe yiqhwa wacwila, uwoyela wavuza olwandle.
Ngenyanga edlule abantu abangaphezu kwe-100 abebevaleleke emkhunjini, okuhlanganisa nabaseBrithani abangu-17, kudingeke ukuthi bakhishwe ngemuva kokuthi ushayisane nesizinda samasosha ase-Argentina. Ochwepheshe babhale izehlakalo eziyisithupha esikhathini esingaphezudlwana nje konyaka ezibeka engcupheni yokungcoliswa kakhulu.
Ngasekuqaleni kwale nyanga kwabhidlika ibhuloho leqhwa elingamakhilomitha angu-40 elixhumanisa ishalofu leqhwa elilingana neJamaica neziqhingi ezimbili e-Antarctica. Leli bhuloho kucatshangwa ukuthi laliyingxenye yesakhiwo se-Wilkins Ice Shelf engu-13,000 XNUMX sq km ososayensi ababikezela ukuthi manje ingase ihlakazeke ibe izinkulungwane zezinguzunga zeqhwa.
Imikhawulo emisha kwavunyelwana ngayo emhlanganweni wokubonisana wesivumelwano se-Antarctic wama-32 eBaltimore, eMaryland, ekupheleni kwezingxoxo ezithathe amasonto amabili.
