La Antarctica. Nahiyar kankara, mai dauke da kyaun gani mai kyau, yayin da duniya ke dumama dusar kankara ta narke. Tasirin albedo kamar haka ne: hasken rana ya bugi dusar ƙanƙara, wanda, idan aka sha shi, yakan rasa ƙarfinsa har sai ya gama haɗuwa da tekun.
Saboda wannan dalili, sandunan sune yankuna da suka fi saurin fuskantar canjin yanayi. Game da Antarctica, zafin jiki na iya tashi zuwa digiri 6 a ƙarshen ƙarni.
Hoto - Ci gaban Cibiyar Kimiyya ta Nationalasa
Bayan shekarun kankara na karshe, shekaru dubu 20.000 da suka gabata, Antarctica ya dumama sau biyu zuwa sau uku matsakaicin zafin duniyaA cewar wani binciken da aka buga a mujallar kimiyya Proceedings of the National Academy of Sciences, har zuwa ma'anar cewa ta yi rajista da yanayin zafin jiki wanda ba a saba gani ba: digiri 11 a ma'aunin Celsius, lokacin da abin al'ada shine cewa yana da digiri da yawa ƙasa da sifili. A sauran duniyar duniyar, kawai ta ƙaruwa da kusan digiri 4 a ma'aunin Celsius.
Masana kimiyya amfani da samfuran yanayi na duniya waɗanda aka yi amfani dasu don nazarin yanayin duniya shekaru dubu 20.000 da suka gabata, wanda yayi daidai da waɗanda aka yi amfani da su don hasashen ɗumamar yanayi a nan gabain ji Kurt Cuffey, marubucin farko na binciken kuma masani kan kyalkyali a jami’ar California, Berkeley.
Don haka, suna iya yin hasashen hakan saboda canjin yanayi na yanzu Antarctica za ta yi zafi fiye da sauran duniyar; wato, a yayin da matsakaicin zafin duniya ya ƙaru da digiri 3 a ma'aunin Celsius, wanda bisa ga samfuran shine mafi kusantar faruwa, Antarctica zata dumama a kusan 6ºC.
A takaice dai, idan ba mu yi komai ba don dakatar da dumamar yanayi, sakamakon da Antarctica da duniya ke ciki na iya zama babban kalubale ga dukkanmu da ke zaune a wannan duniyar tamu.
Kuna iya karanta karatun a nan (Turanci ne).