Canjin yanayi yana da sakamako mai tasiri da lahani ga tsara mai zuwa. A zahiri, yawancin tasirin sa ana riga an gani a yau. Koyaya, kokarin duniya na rage hayaki mai gurbata yanayi bai isa ba kuma narkewar manyan wuraren polar kamar yadda Arctic take zuwa.
Menene sakamakon da narkewar Arctic ɗin gaba ɗaya zai yi wa duniya?
Rikodin kwanan nan na kwanan nan
Tun daga shekara ta 2014, lokacin da aka rubuta yanayin matsakaicin yanayin duniya tun lokacin da aka auna shi, akwai wani kusan kamuwa da cuta dari ta kwayoyin cuta na jinsi girgiza. Wannan shekara ta 2014 tana da daraja a matsayin shekarar da ta fi ɗumi tunda an rubuta yanayin zafi. Daga cikin sunayen kwayoyin cuta, mun sami wadanda ke haifar da cutar kwalara a gabar kasashen Sweden da Finland. Wasu daga cikin waɗannan shari'ar sun faru kimanin mil 160 daga Yankin Arctic. Me yasa waɗannan kwayoyin zasu iya shafar latitude kusa da Arctic?
Kwayar halittar mutum girgiza
Tasirin canjin yanayi wanda yake dagula lamura
Canjin yanayi da munanan tasirinsa suna lalata aiki da kewayon yawancin nau'ikan flora da fauna. Jinsunan da suka fi saurin fuskantar wadannan canje-canje suna da alaƙa da wurare masu zafi kuma suna ƙaura zuwa arewa saboda ƙaruwar zafin jiki. Wadannan kwayoyin halittar girgiza Suna buƙatar yanayin zafi mai tsayi don rayuwa da kyau kuma saboda hauhawar yanayin duniya, zasu iya kara yankin rarrabuwa kuma ta rayu a wuraren da ke mafi girman latitude ta arewa. Bayyanar cututtuka da cututtukan cuta wasu daga cikin sakamakon da narkewar da sauyin yanayi ya haifar zai haifar.
Ya kamata a ambata cewa dumamar yanayi ba iri daya bane a duk sassan duniya. Akwai yankuna na duniya waɗanda, saboda yanayin yanayin ƙasa, sun fi wasu zafi. Misali, a cikin Arctic wani sakamako da ake kira fadada arctic wanda narkar da shi ya fi bayyana a sauran yankuna masu daskarewa. Ana iya bayanin wannan ta hanya mai sauƙi ko ƙasa: Narkar da ruwa don rage karfin yankin na yin nuni da abin da ya faru game da hasken rana. Wannan yana nufin, albedo na duniya Yana raguwa yayin da ƙarancin kankara yake don nuna juyi kuma, sabili da haka, yawan zafin da ƙasa ke sha yafi yawa. Wannan yana haifar da farfajiyar tayi zafi sosai kuma ta mayar da daskarewa, wanda ke haifar da cututtukan cuta samun damar wadannan wuraren da za'a zauna dasu kuma yada su.
Kwayar cuta ta yadu
Kodayake ba za a iya ganin wadannan kwayoyin ba, amma kwayoyin halittun ruwa sune babban sinadarin biomass a cikin tekuna. Wannan nau'in da aka ambata a baya na kwayoyin cuta girgiza suna da cuta. Wani hatsarin da ke tattare da narkewar shi ne narkewar da permafrost daga yankin arewa na Siberia, Kanada da Greenland. Kamar yadda aka ambata a sama, kamar yadda duk kankarar da ke ƙasa ta narke, yana ba da damar wannan nau'in ƙwayoyin cuta masu ɓarna don yaɗuwa da haifar da cututtuka masu tsanani.
permafrost (daskararren ƙasa)
Masu binciken CSIC sun sami DNA daga har yanzu ba a san ƙwayoyin cuta ba a cikin tabkunan Svalbard a watan Yunin 2015. Watanni biyu daga baya aka sake bayyana wata kwayar cuta da ta shekara 30.000 ta makale a cikin kankara ta Siberia. Wannan na iya zama babbar matsalar lafiya a duk duniya domin ba a fahimtar yadda ake yin irin wannan ƙwayoyin cuta da kuma gaskiyar cewa suna iya haifar da sababbin cututtuka a cikin mutane.
Rashin narkewa da sauyin yanayi
Canjin yanayi yana narkar da kankarar Arctic kuma wannan yana ciyar da canjin yanayi. Cikakken rahoto daga Jami'o'in Kimiyya na Amurka game da tasirin duniya na narkewar Arctic na 2015 ya nuna yadda rage tasirin albedo, sakin methane da carbon da suka makale a cikin permafrost, ko sauya canjin teku zai kara dumamar yanayi. duniya. Kuma wannan tabbas halakar da sauran kankara a cikin Arctic.