I-Antarctica itholakala eningizimu yezwe, futhi ihlukaniswe ngezifundazwe ezahlukahlukene. Ensimini yezwekazi, kwenziwa ucwaningo lwesayensi ikakhulukazi, kepha imibandela yokuphila ayifanele. Umhlabathi waleli zwekazi izinguzunga zeqhwa eziqhubekayo nezingwadule ezineqhwa. Umhlaba omangalisayo wezimila nezilwane wakhiwa lapha, kepha ukungenelela komuntu kuholele ezinkingeni zemvelo.
Ukuncibilika kweqhwa
Ukuncibilika kweGlacier kubhekwa njengenye yezinkinga ezinkulu zemvelo e-Antarctica. Lokhu kungenxa yokushisa komhlaba. Izinga lokushisa lomoya ezwekazini landa njalo. Kwezinye izindawo ngesikhathi sasehlobo kunokuhlukaniswa okuphelele kweqhwa. Lokhu kuholela eqinisweni lokuthi izilwane kufanele zivumelane nezimo ukuze zihlale esimweni sezulu esisha nezimo zezulu.
Izinguzunga zeqhwa ziyancibilika ngokungalingani, ezinye izinguzunga zeqhwa zihlupheka kancane, ezinye zihlupheka kakhulu. Isibonelo, iLarsen Glacier yalahlekelwa ubukhulu bayo njengoba ama-icebergs amaningana aqembuka kuyo abhekisa amabombo oLwandle i-Weddell.
Imbobo ye-ozone ngaphezulu kwe-Antarctica
Kukhona umgodi we-ozone phezu kwe-Antarctica. Lokhu kuyingozi ngoba ungqimba lwe-ozone aluyivikeli indawo emisebeni yelanga, izinga lokushisa lomoya liyashisa ngokwengeziwe futhi inkinga yokushisa komhlaba iba ngokushesha kakhulu. Futhi, izimbobo ze-ozone zifaka isandla ekwandeni komdlavuza, ziholele ekufeni kwezilwane zasolwandle nasekufeni kwezitshalo.
Ngokuya ngocwaningo lwakamuva lososayensi, imbobo ye-ozone phezu kwe-Antarctica kancane kancane yaqala ukuqina, futhi, mhlawumbe, izonyamalala emashumini eminyaka. Uma abantu bengathathi sinyathelo ukubuyisa ungqimba lwe-ozone, futhi baqhubeke nokufaka isandla ekungcolisweni komkhathi, lapho-ke umgodi we-ozone ongaphezu kwezwekazi leqhwa ungakhula futhi.
Inkinga yokungcola kwe-Biosphere
Ngokushesha nje lapho abantu bevela okokuqala ezwenikazi, bafika nodoti, futhi njalo lapho abantu beshiya inqwaba yemfucuza lapha. Namuhla, iziteshi eziningi zesayensi zisebenza endaweni yase-Antarctica. Abantu nemishini kulethwa kubo yizinhlobo ezahlukahlukene zezokuthutha, uphethiloli nophethiloli kawoyela okungcolisa indawo ephilayo. Futhi, kudilizwa ngokuphelele udoti nemfucuza lapha okumele kulahlwe.
Akuzona zonke izinkinga zemvelo ezwekazini elibanda kakhulu emhlabeni ezibalwe. Ngaphandle kokuthi awekho amadolobha, izimoto, izimboni kanye nenani elikhulu labantu, imisebenzi ye-anthropogenic kule ngxenye yomhlaba yenze umonakalo omkhulu emvelweni.
