TV Kimiyya ta Duniya: Kankara Arctic yana ci gaba da raguwa. Ga abin da hakan ke nufi gare mu duka

Yi bidiyo

Karanta rubutun:

Ka yi tunanin yankin Arctic mai ƙarancin ƙanƙara da dusar ƙanƙara da ƙarin buɗaɗɗen ruwa da ruwan sama.

Canji zuwa sabon yanayin Arctic yana da kyau.

Akwai babban kewayon canji a cikin Arctic. Ba za ku iya samun wani tsari a cikin Arctic ba, wanda ba ya amsa wannan canjin yanayi da mutum ya yi.

Haɓakar yanayin zafi yana ɗaukar nauyi.

Wannan raye-rayen yana nuna girman kankara a cikin Arctic na Satumba 15 2020… kusan murabba'in kilomita miliyan 3.74.

Layin orange yana nuna matsakaita a wannan rana tsakanin 1981 da 2010.

Wannan shekara ita ce ta biyu mafi ƙasƙanci da aka yi rikodin.

Yana raguwa da kusan kashi 13 cikin 90 a duk shekaru goma dangane da girman kankarar teku, amma kuma shekarun kankara na raguwa. Don haka a da, za ku sami kankarar teku wanda zai yi shekara ɗaya ya ci gaba da girma kuma ya yi girma ya zama kankara mai shekaru masu yawa. Kuma wannan shine nau'in kankara da walruses ko polar bears ko wasu nau'ikan halittu masu mahimmanci a cikin Arctic suka dogara da su. Kuma hakan ya ragu da kashi XNUMX cikin XNUMX a cikin ƴan shekarun da suka gabata. Canje-canje masu ban mamaki.

Wannan yana nufin ko da shekaru masu tsananin sanyi ba sa haifar da matakan ƙanƙara da aka yi la'akari da su na al'ada.

Masana kimiyya sun damu da narkewa ta hanyar narkewar permafrost - daskararren Layer na ƙasa wanda ke ƙarƙashin Arctic.

Dubun dubbai na shekaru, permafrost yana aiki kamar babban injin daskarewa, yana kulle a cikin tsoffin ƙwayoyin cuta.

“Waɗanda kuka binne a cikin ƙasa, yanzu suna tafe, da kuma barazanar anthrax da sauran cututtuka. Wannan babbar matsala ce inda ake samun permafrost."

Haka ne, yayin da permafrost ya narke, yana fuskantar haɗarin fallasa ɗan adam ga kowane nau'in cututtuka masu mutuwa.

Ruwan Arctic permafrost kuma ya ƙunshi ɗimbin adadin mercury.

Ci gaba da narkewa zai ga an sake shi cikin teku, yana gurɓata kifin kifi.

Kuma ba haka ba ne.

Narke Permafrost yana da yuwuwar sakin methane da carbon dioxide mai yawa, yana haɓaka ɗumamar yanayi har ma da gaba.

Kuma akwai irin ra'ayi na gaske da ke faruwa a nan. Don haka ɗumamar da ke faruwa a duniya tana shafar Arctic daidai gwargwado. Don haka wannan ya fi sauran sassan duniya ɗumi. Kuma dangane da wannan tasirin, dumamar yanayi ta Arctic tana yin tasiri a duniya baki daya, domin yana shafar wancan, na’urar sanyaya iska, da tsarin sanyaya duniya.

To yaya ya kamata mu damu da duk waɗannan abubuwan?

Muna da irin dama sosai don damuwa. Waɗannan sauye-sauyen ba a taɓa samun irinsu ba, kuma ko shakka babu ayyukan ɗan adam ne ke haifar da su, da kuma tsarin yanayin halitta, amma aikin ɗan adam yana da matuƙar mahimmanci.

Ba kwa buƙatar shawo kan al'ummomin Arctic da yawa.

Gaba dayan ƙauyukan ƴan asalin Alaska suna tunanin motsi, ta fuskar ɓarna bakin teku.

Abincin su ma ya yi tasiri sosai.

"A zamanin yau, muna da sabbin nau'ikan nau'ikan da aka fi so wadanda suka zo gaba, kuma suka tafi Tekun Arctic. Mutane suna mamakin inda nau'in al'ada suke. Ba su kuma wanzu. "

Kwayar cutar ta Covid-19 ta kawo cikas ga wasu ayyukan bincike a yankin, amma masana kimiyyar yanayi sun ce shaidar ta riga ta bayyana.

Ba za mu iya ci gaba da jiran ƙarin labarai mara kyau ba kafin ɗaukar takamaiman mataki kan sauyin yanayi.

Arctic babban misali ne na inda sauyin yanayi, ainihin tasirin sauyin yanayi ake ji. Wani lokaci muna tunani game da canjin yanayi a matsayin tsari mai karuwa sosai. Lokacin da ka je Arctic, za ka iya ganin canje-canje masu ban mamaki da sauyin yanayi ke haifarwa, wato dan Adam ya jawo sauyin yanayi yana haddasawa. Za ka ga dusar ƙanƙara da ta ruguje, za ka ga wuraren da ke cikin teku da a da akwai ƙanƙara a kansu waɗanda ba su da yawa. Kuna iya ganin tasirin nau'in kifin da suke a wani wuri a yanzu lokacin da suke a wani. Kuma hakika yana shafar rayuwar mutane yayin da suke rayuwa a cikin Arctic kuma bi da bi, zai shafi rayuwarmu da gaske a duk sauran duniya.