Ka taƙaita labarin:  A wasu lokatai, wani babban kankara yakan fito daga Antarctica kuma ya shiga cikin teku. A watan Maris, NASA ta sami damar kama wannan abin mamaki daga sararin samaniya yayin wani tsari wanda ya kasance watanni a cikin yin. Cibiyar Ice Ice ta Amurka (NIC) ta ga babban dutsen kankara, wanda ya fi Manhattan girma, yana tsagewa daga kankara na Getz na Yammacin Antarctica. Gungura ƙasa don bidiyo. A watan da ya gabata, NASA ta kama wani dutsen kankara mai tsawon mil 17 (27km) wanda aka haifa a cikin Yankin Yankin Yankin Yammacin Antarctica na Getz. Hoton da ke hagu yana nuna yanayin kafin dutsen kankara ya karya uku kuma a hannun dama babban dutsen da ke iyo a cikin teku. Glaciers a cikin Tekun Amundsen na yammacin Antarctica suna rasa kankara da sauri fiye da ko'ina a nahiyar kuma sune manyan masu ba da gudummawa ga hauhawar matakan teku. Tsawon mil 17 (27km), dutsen kankara B-34 ya bayyana ya karye kuma ya koma cikin Tekun Amundsen a wani lokaci a tsakiyar zuwa ƙarshen Fabrairu 2015, in ji Nasa. Moderate Resolution Imaging Spectroradiometer (Modis) a kan tauraron dan adam na Terra da Aqua na NASA sun ɗauki hotunan da suka shafi taron calving. B-34 shine dutsen kankara na 34 daga 'B' na Antarctica wanda NIC ya bi. Sabon dutsen yana da ƙananan, duk da haka, fiye da tsofaffi B-15T - wani ɓangare na B-15 wanda ya fara rabuwa daga Ross Ice Shelf a watan Maris na 2000. Hoto na farko (hagu) yana nuna dutsen kankara a ranar 16 ga Fabrairu, lokacin da har yanzu yana haɗe da kankara. A ranar 28 ga Fabrairu (tsakiya), da alama ya ɗan rabu. A ranar 5 ga Maris (dama), yana shawagi kyauta. B-34 shine dutsen kankara na 34 daga 'B' na Antarctica wanda NIC ya bi. Gishiri a wannan yankin yana rasa kankara da sauri fiye da ko'ina a nahiyar kuma sune manyan masu ba da gudummawa ga hauhawar matakan teku. Manyan dutsen kankara na iya yin tasiri mai yawa a Kudancin Tekun. Alal misali, sa'ad da duwatsun suka narke, ruwan teku mai gishiri da ke cikinsa zai iya shafan igiyoyin teku da kuma yadda ruwa yake zagayawa. Masu bincike sun nuna, duk da haka, cewa ko da karin ruwan sha...
Iceberg ya karye daga Getz Ice Shelf kuma ya koma cikin Amundsen Sea wani lokaci a tsakiyar zuwa karshen Fabrairu. Yankin yana rasa kankara da sauri fiye da ko ina a nahiyar kuma shine babban mai ba da gudummawa ga hauhawar matakan teku. Masana kimiyya suna hada hotuna irin wannan tare da sautuna daga kankara don gano yadda glaciers ke narkewa.