Shirya ɗaukar hoto na Arctic ya fadi ne zuwa matakin karshe na na biyu sakamakon abubuwan da tauraron dan adam suka fara ne a 1979, masanan Amurka suka ce Litinin.
Har zuwa wannan watan, sau daya a cikin shekaru 42 da suka gabata yana da kwanon daskararrun kwanon daskararrun ƙasa da miliyan 4 (kashi 1.5 miliyan miliyoyin).
Arctic na iya samun lokacin bazara na farko da na farko kamar 2035, masu binciken sun ba da rahoton watan da ya gabata a cikin Jaridar Tasannin Yanayi Yanayi.
Amma duk abin da ke narke dusar ƙanƙara da kankara ba ya ɗebo matakan tekawa kai tsaye, kamar narkar da gilashin ruwa, wanda ke damun tambayar mara kyau: Wanene ya damu da tambaya?
Tabbas, wannan mummunan labari ne ga belar bears, wanda, a cewar wani binciken da ya gabata, an riga an kan hanyarsu ta lalace.
Haka ne, hakika yana nufin canji na yankin na yankin yanki na yankin, daga Phytoplankton zuwa Whales.
Kamar yadda ya juya, akwai dalilai da yawa da za a damu game da tasirin tasirin teku na Arctic.
Wataƙila mafi asalin ra'ayi, masana kimiyya sun ce, wannan yana raguwa da zanen gado ba wai kawai alama ce ta dumamar duniya ba, amma ikon tuki a bayan sa.
"Cire kankara na teku yana haskaka teku mai duhu, wanda ke haifar da ingantaccen tsari," in ji Geophydipist mai ƙarfi, "in ji Geophydipist Marco Tedesco na duniya Cibiyar Cibiyar Columbia.
Amma lokacin da aka maye gurbin madubi tare da ruwan shuɗi mai duhu, kusan kashi ɗaya cikin adadin ƙarfin zafin rana na duniya ya sha.
Ba mu magana ne game da yankin hatimin a nan: Bambanci tsakanin matsakaicin takardar shayi daga 1979 zuwa 1990 kuma mafi ƙarancin murabba'in kilomita miliyan 3 - Jamus da Spain miliyan uku.
Tekuna sun riga sun sha kashi 90 na yawan zafi mai yawa wanda gas na gas, gami da canje-canje ne, mai tsananin zafin rana da kuma mutuƙar murjani.
Tsarin yanayi mai rikitaccen duniya ya haɗa da igiyoyin teku da iska, ta hanyar da ake kira yankin Thermohana, wanda aka kori ta hanyar canje-canje a cikin zazzabi ("dumama") da taro mai gishiri ("brine").
Ko da ƙananan canje-canje a cikin bel ɗin teku (wanda ke tafiya tsakanin sandunan kuma suna ba da duk tekuna uku) na iya samun sakamako mai illa a yanayin yanayi.
Misali, kusan shekaru 13,000 da suka gabata, kamar yadda duniya ta zartar da yanayin rashin lafiya zuwa lokacinmu da ya bunkasa 'yan digiri Celsius.
Shaida na Geolatolic yana nuna cewa jinkirin a cikin sararin samaniya wanda ya haifar ta hanyar babban ruwan sanyi da saurin ruwa na ruwan sanyi daga cikin Arcctic ya zama abin zargi.
"Ribre ruwa daga narke teku da kankara a cikin gurbata na GreenTwe," in ji mai binciken Xavier Fettwwwwwwwwwwwwwewe, "in ji mai binciken Xavier Fettoum.
"Wannan shine dalilin da ya sa Yammacin Turai yana da matsi mai sauƙin sauyin fiye da arewacin Amurka a wannan lanitude."
Babban takardar Ice a kan ƙasa a cikin Greenland ya rasa fiye da tan biliyan 500 na ruwa mai tsabta a bara, duk abin da ya taka cikin teku.
Adadin rikodin yana cikin wani bangare ne saboda hauhawar yanayin zafi, wanda ke tashi sau biyu a cikin Arctic fiye da sauran duniyar.
"Karatun da yawa sun nuna cewa karuwar arctic highs na wani bangare ne saboda ƙarancin girman kankara," in ji Fettwiss AFP.
Dangane da binciken da aka buga a cikin Jaridar Aikin a watan Yuli, yanayin yanayin canji na yanayi, yana da ƙasa da kilomita miliyan 1. A ƙarshen karni, bears da za a ɗora fama da yunwa.
"Tsarin dumama na mutane ya haifar da bears bears da kasa da Tekun Tece A cikin bazara," Babban masanin da a Polar da International, ya fada wa AFP.