Antarctica yanki ne mai matukar sanyi wanda mutane kalilan ne suka ziyarce shi, kuma ma ƙalilan ne suka taka ƙafa a ɗaya daga cikin kankararta: Thwaites. wanda yake a yankin yammacin nahiyar. Ofaya daga cikin fewan da suka yi sa'a shine Knut Christianson, masanin ƙyalli a Jami'ar Washington (Amurka), wanda ya himmatu ga nazarin ta domin hango sakamakon narkar da duniya.
Abin da ya gano har zuwa yau yana kama da labari na ƙarshe fiye da na gaske, amma gaskiyar ita ce tana ba da abubuwa da yawa don tunani. Kuma wannan shine, »idan akwai wani bala'in yanayi, da alama zai fara ne a cikin Thwaites"Kamar yadda Ian Howat, wani masanin kimiyyar kyalkyali na Ohio ya annabta. Amma me yasa?
Ice na Antarctica yana narkewa kamar gidan kati, ma'ana, wancan Zai tsaya daram har sai an tura shi. Kodayake tsari ne da ba zai faru dare daya ba, a cikin shekaru goman da suka gabata na haskaka kankarar ta Thwaites zai dagula ragowar kankara a yammacin nahiyar. Da zarar na yi, zai sanya haɗari ga duk waɗanda ke zaune a cikin nisan mil 80 daga bakin teku, wato rabin mutanen duniya.
Matsayin teku zai iya tashi da kusan sassa uku a sassa da yawa na duniya, kuma har zuwa huɗu a wasu kamar New York ko Boston.
Har yaushe har wannan ya faru? Da kyau, da farko nahiyar na barci, amma "yanzu tana tafiya," in ji Mark Serreze, darektan Cibiyar Bayar da Kankara da Ice ta Amurka. A cikin 2002 dutsen kankara na Larsen B ya narke. Bacewar sa ya taimaka wa kankarar da ke bayan ta kwarara cikin teku har sau takwas da sauri fiye da da. Yana yiwuwa cewa Dandalin Larsen C sha wahala iri ɗaya, tunda ta ba da fashewar kilomita 160.
Dangane da kwaikwayon Eric Rignot na NASA da Ian Joughin na Jami'ar Washington, wannan tsarin tsari ya riga ya fara aiki a cikin kankara na Thwaites.
Don ƙarin sani, za ku iya danna a nan.