Ba zato ba tsammani a hana bincikowa a Chile saboda damuwar canjin yanayi

Kamfanin gandun daji na kasar Chile ya sanya dokar hana zirga-zirga kwatsam a kan Exploradores.

Chile ta Kamfanin National Forestry Corporation ya yanke shawarar dakatar da dindindin masu tafiya daga sanannen glacier Exploradores a Patagonia saboda damuwa game da aminci da saurin narkewa.

Wannan shawarar ta haifar da cece-kuce a tsakanin masu fafutuka da jagororin gida, yayin da ta haifar da muhawara game da hadarin hawan kankara a cikin sauyin yanayi. Masana kimiyyar ruwa na gwamnati sun gudanar da bincike na makonni biyu kuma sun gano cewa glacier yana gabatowa "matsayin juyewa" mai hatsarin gaske.

Hukumar kula da gandun daji ta kasar Chile ta dakatar da zirga-zirgar kankara na dindindin a kan Glacier Exploradores a Patagonia saboda bayyananniyar hatsari da rashin tabbas game da halayen glacier da damuwa na aminci ga ayyukan yawon shakatawa. Wannan shawarar ta nuna yanayin da duniya ke ciki, yayin da masu hawan kankara a duk duniya ke fuskantar kalubale daga illar yanayin zafi a kan hanyoyin da suka saba. Misali, babban yanki na Marmolada glacier na Italiya ya ruguje, wanda ya kai ga mace-mace, kuma dole ne hukumomi su soke hawan Mont Blanc saboda narkewar kankara wanda ya haifar da karuwar duwatsu a lokacin bazara guda.

Jagororin yankin sun yi mamakin rufewar dare na Exploradores Glacier.

Rufe glacier na Explorers ya biyo bayan wani muhimmin al'amari na kirkar da kankara a kan babban glacier. Duk da yake ba a cutar da masu tuƙi ba, jagororin gida sun ɗauki al'ada ta al'ada ta yanayin dusar ƙanƙara.

Duk da haka, wani bincike na gwamnati ya nuna cewa irin wannan rarrabuwa zai zama ruwan dare gama gari. Hotunan jiragen ruwa masu saukar ungulu tun daga shekarar 2020 suna nuna dusar kankara tana raguwa da ƙafa 1.5 (0.5m) a kowace shekara, tare da ninki biyu na lagon ruwan narke a saman sa. Ƙara yawan hulɗa da ruwa yana haɓaka aikin narkewar glacier.

A cewar rahoton, hadewar glacier thinning da kuma karuwar yawan glacial lagoons yana tura glacier Exploradores zuwa sakamako biyu masu yiwuwa. Ko dai babban abin da ya faru na ƙirƙira ƙanƙara zai iya faruwa, ko kuma ɗimbin ƙananan lagos na iya haifar da gaban glacier ya tarwatse. A cikin ko wanne yanayi, rahoton yana hasashen saurin ja da baya na glacier na Exploradores saboda saurin narkewa.

Duk da yake rahoton ko sanarwar rufewa ba ta yi magana a kai a kai kan sauyin yanayi ba, rahoton ya yi nuni da cewa dusar kankarar ta tsaya tsayin daka na kusan karni guda kafin ta yi saurin raguwa a cikin 'yan shekarun nan.

Halin saurin dusar ƙanƙara da aka gani a glacier na Exploradores ya yi daidai da yanayin duniya da ke shafar glaciers a duk duniya, wanda ake danganta shi da hauhawar yanayin teku da hayaƙi mai gurbata yanayi ke haifar da shi.

Wani bincike na baya-bayan nan ya yi hasashen cewa kashi biyu bisa uku na glaciers na duniya za su bace nan da karshen karni, wanda zai haifar da hawan tekun da ya kai inci 4.5 (11.4cm) da yiwuwar raba sama da mutane miliyan 10 a duniya.