Karancin tsibiran wurare masu zafi na iya zama ba za a iya rayuwa a cikin shekaru 30 ba saboda hauhawar matakan teku da kuma ambaliya da igiyar ruwa ke haifarwa, sabon bincike ya nuna. Tsibiran da suka haɗa da wuraren hutu na aljanna kamar Seychelles da Maldives (hoton) za a iya shafa su da zarar 2030, in ji su.

- Masana sun yi nazarin tsibirin Roi-Namur a tsibirin Marshall daga 2013 zuwa 2015
- Tushen tushen ruwan sha na atolls shine ruwan sama da ke jikewa cikin ƙasa
- An yi hasashen hauhawar matakan tekun zai haifar da gurbatar ruwan tekun
- Ana hasashen wannan zai zama abin da ya faru na shekara-shekara a tsakiyar ƙarni na 21st
- Mazaunan tsibirin atoll na iya zama mai yiwuwa nan da 2030 zuwa 2060

Karancin tsibiran wurare masu zafi na iya zama ba za a iya rayuwa a cikin shekaru 30 ba saboda hauhawar matakan teku da igiyar ruwa ta haifar da ambaliya, sabon bincike ya nuna. Masana sun yi gargadin cewa ruwan da ake ajiyewa a kan atolls a tekun Pasifik da Indiya za su lalace sosai canjin yanayi cewa da yawa ba za su ƙara tallafa wa mutane ba. Masana kimiyya sun yi hasashen cewa za a kai wani wuri a tsakiyar wannan karni yayin da ruwan karkashin kasa da ya dace da sha zai bace gaba daya. Tsibiran da suka haɗa da wuraren hutu na aljanna kamar Seychelles da Maldives za a iya shafa su nan da 2030, in ji su.

Masu bincike daga Cibiyar Nazarin Yanayin Kasa ta Amurka (USGS) da Jami'ar Hawaii a Mānoa sun mayar da hankali kan tsibirin Roi-Namur a kan Kwajalein Atoll a Jamhuriyar Marshall Islands don nazarin rukunin yanar gizon su, wanda ya faru daga Nuwamba 2013 zuwa Mayu 2015. Madogararsa ta farko. na ruwa mai dadi na tsibiran atoll ruwan sama ne da ke jikewa cikin ƙasa kuma ya kasance a can a matsayin ruwan ruwa mai daɗi wanda ke yawo a saman ruwan gishiri mai yawa. Duk da haka, an yi hasashen hauhawar matakan tekun zai haifar da guguwar ruwa da sauran raƙuman ruwa da ke tashi sama da kan ƙananan tsibiran da ke kwance, waɗanda aka fi sani da overwash. Wannan tsari ya sa ruwan da ke kan atolls bai dace da amfani da ɗan adam ba.

Masana sun yi amfani da yanayin sauyin yanayi iri-iri don tsara tasirin hawan teku da ambaliya da igiyar ruwa ke haifarwa a yankin. Masana kimiya sun yi hasashen cewa, bisa la’akari da yawan hayakin da ake fitarwa a duniya a halin yanzu, za a yi wa fiye da kima a yawancin tsibiran atoll nan da tsakiyar karni na 21. Sakamakon asarar ruwan karkashin kasa da za a iya sha zai sa rayuwar dan Adam ta kasance cikin wahala a mafi yawan wurare tun daga shekarun 2030 zuwa 2060, in ji su. Wataƙila wannan zai buƙaci ƙaura mazauna tsibirin ko kuma saka hannun jari mai yawa a cikin sabbin ababen more rayuwa, masu bincike sun yi gargaɗi.

Masu bincike sun mayar da hankali kan tsibirin Roi-Namur a kan Kwajalein Atoll a Jamhuriyar Marshall Islands (hoto) don nazarin rukunin yanar gizon su, wanda ya faru daga Nuwamba 2013 zuwa Mayu 2015 & Masana sun yi gargadin cewa ruwa mai tsabta a kan atolls a cikin tekun Pacific da Indiya, kamar na tsibirin Marshall (hoton) za su lalace sosai saboda sauyin yanayi wanda da yawa ba za su ƙara tallafa wa mutane ba

Marubucin binciken Dr Stephen Gingerich, masanin kimiyyar ruwa na USGS, ya ce: 'Ayyukan da suka mamaye gabaɗaya suna haifar da ruwan teku mai gishiri yana shiga cikin ƙasa tare da gurɓata magudanar ruwa. 'Ruwa daga baya a cikin shekara bai isa ya fitar da ruwan gishiri da kuma wartsakar da ruwan tsibirin kafin guguwa ta shekara mai zuwa ta sake maimaita abubuwan da suka faru ba.' Jamhuriyar Marshal Islands tana da tsibirai marasa kan gado sama da 1,100 akan atolls 29, kuma gida ce ga dubban daruruwan mutane. Matakan teku suna haɓaka, tare da mafi girman ƙimar a cikin wurare masu zafi, inda dubban tsibiran murjani na murjani atoll suke. Tawagar ta ce tsarin nasu zai iya zama wakili ga atolls a duk duniya, yawancinsu suna da irin wannan wuri da tsari - gami da, a matsakaita, har ma da ƙananan filaye.

Masu bincike sun ce sabon binciken yana da mahimmanci ba kawai ga tsibirin Marshall ba, har ma da wadanda ke cikin Caroline, Cook, Gilbert, Line, Society and Spratly Islands da Maldives, Seychelles, da Arewa maso yammacin Hawaiian Islands. Binciken da aka yi a baya kan juriyar wadannan tsibiran zuwa matakin teku an yi hasashen za su fuskanci karancin tasirin ambaliyar ruwa har sai a kalla karshen karni na 21st. Amma binciken da aka yi a baya bai yi la'akari da ƙarin haɗarin da ke tattare da ƙetare igiyar ruwa ba ko kuma tasirinsa akan samuwar ruwa mai daɗi. Marubucin binciken Dr Curt Storlazzi, na USGS, ya kara da cewa: 'Matsalar da aka samu lokacin da ruwan karkashin kasa ba zai samu ba a yawancin tsibiran atoll ana hasashen za a kai shi nan da tsakiyar karni na 21. 'Irin wannan bayanin shine mabuɗin don tantance hatsarori da yawa da ba da fifiko ga ƙoƙarin rage haɗari da haɓaka haɓakar al'ummomin tsibirin atoll a duniya.'

An buga cikakken sakamakon binciken a cikin mujallar Kimiyyar Kimiyya

ABUBUWAN DA ZA KU GUDU DAGA WANNAN LABARI:

Researchers focused on Roi-Namur Island on Kwajalein Atoll in the Republic of the Marshall Islands (pictured) for their site study, which took place from November 2013 to May 2015 & Experts warn that freshwater reserves on atolls in the Pacific and Indian oceans, like those of the Marshall Islands (pictured) will be so damaged by climate change that many will no longer support humans.
Researchers from the US Geological Survey (USGS) and the University of Hawaii at Mānoa focused on Roi-Namur Island on Kwajalein Atoll in the Republic of the Marshall Islands for their site study, which took place from November 2013 to May 2015.
Researchers said that the new findings have relevance not only to the Marshall Islands, but also to those in the Caroline, Cook, Gilbert, Line, Society and Spratly Islands as well as the Maldives, Seychelles, and Northwestern Hawaiian Islands.