Wannan gidan yanar gizon yana amfani da kukis don tabbatar da samun mafi kyawun ƙwarewa yayin bincike. Danna "Samu" yana nufin ka karɓi waɗannan sharuɗɗan.
Masana kimiya na binciken yadda ake amfani da asbestos wajen hako datti don adana iskar carbon dioxide mai yawa a cikin iska don taimakawa wajen magance matsalar yanayi.
Asbestos wani ma'adinai ne na halitta wanda aka taɓa yin amfani da shi azaman rufin zafi da hana wuta a cikin gine-gine. Waɗannan abubuwan amfani an san su sosai don abubuwan da ke haifar da cutar sankara, amma an yi amfani da su a cikin wasu birki na mota da rufi da fale-falen rufi a cikin masana'antar chlorine. Ko da yake a halin yanzu kasashe 67 sun haramta amfani da kayan fiber, amma Amurka ba ta cikin su.
Yanzu, masu bincike suna mai da hankali kan wasu nau'ikan asbestos na fibrous, waɗanda samfuran sharar gida ne daga ma'adinai. A cewar Eos, babban ingancin da ke sa asbestos ya zama haɗari ga shaƙa shi ma yana sa shi da kayan aiki da kyau don kama ƙwayoyin carbon dioxide da ke shawagi a cikin iska ko narkar da ruwa. Rahoton ya yi bayani dalla-dalla cewa girman saman fiber yana sanya su "masu amsawa sosai da sauƙin jujjuya su" zuwa carbonates marasa lahani lokacin haɗe da carbon dioxide. Wannan tsari yana faruwa ne a zahiri lokacin da asbestos ke fallasa ga iskar gas.
Dangane da Binciken Fasaha na MIT, waɗannan dagewar kayan zasu iya kulle iskar gas na miliyoyin shekaru kuma sun tabbatar da zama zaɓi mai dacewa don ɗaukar iskar carbon dioxide daga sararin samaniya. Masana kimiyya suna fatan fara kawar da "manyan" hayaƙin carbon daga ayyukan hakar ma'adinai da farko, sa'an nan kuma fadada ƙoƙarin rage hayaƙin iska.
Gregory Dipple, shugaban masu bincike a fannin, ya shaida wa MIT Technology Review cewa: “A cikin shekaru goma masu zuwa, kawar da ma’adinan zai taimaka mana ne kawai don haɓaka kwarin gwiwa da ƙwarewa don rage fitar da hayaki. Kuma ana aiwatar da aikin hakar ma'adinai na gaske."
A cewar Kottke Ride Home Podcast host Jackson Bird (Jackson Bird) ya ruwaito cewa lokacin da waɗannan abubuwa suka shiga cikin teku ta hanyar ruwa, ma'adinai kuma yana faruwa. Kwayoyin halittu na ruwa suna amfani da waɗannan ions don sanya bawonsu da ƙasusuwansu su zama farar ƙasa da sauran kama. Carbon dutsen.
Ajiye carbon wata hanya ce da ta dace don rage adadin carbon dioxide a cikin yanayi. Idan ba tare da shi ba, da wuya mu cimma "manufofin carbon" da kuma guje wa mummunan sakamakon rikicin yanayi.
Masana kimiyya kuma suna binciken yadda ake amfani da datti daga sauran masana'antar hakar ma'adinai kamar nickel, jan karfe, lu'u-lu'u da platinum don kama carbon. Sun yi kiyasin cewa akwai yuwuwar samun isassun kayan da za su dakatar da duk iskar carbon dioxide da ɗan adam ya taɓa fitarwa, da ƙari, in ji rahoton Bird.
Yanzu, yawancin abubuwa suna daidaitawa a cikin ƙwararrun duwatsu waɗanda ba a taɓa samun iska ba, wanda zai fara waɗannan halayen sinadarai. Wannan shine dalilin da ya sa masana kimiyya da ke nazarin cirewar carbon ke ƙoƙarin nemo hanyoyin da za su ƙara bayyanar da sauri da kuma hanzarta mayar da martanin da aka saba yi don mayar da sharar ma'adinai zuwa wani mai karfi mai inganta juriya ga rikicin yanayi.
Rahoton na MIT ya ba da cikakken bayani game da yawancin ayyukan da aka gwada ta hanyar tono kayan, da niƙa su cikin mafi kyawun barbashi, sa'an nan kuma yada su cikin yadudduka na bakin ciki, sa'an nan kuma yada su ta iska don ƙara haɓakar yanayin yanayin yanayin abubuwan carbon dioxide. Wasu suna buƙatar dumama ko ƙara acid zuwa fili. Eos ya ba da rahoton cewa wasu ma suna amfani da tabarma na ƙwayoyin cuta don fara halayen sinadaran.
"Muna neman hanzarta wannan tsari kuma mu canza shi daga tarin sharar asbestos zuwa ajiyar carbonate maras lahani," in ji masanin ilimin halittu Jenine McCutcheon, wanda ya himmatu wajen mayar da wutsiyar asbestos da aka yi watsi da shi zuwa Magnesium carbonate mara lahani. Masu wasan motsa jiki da masu hawan dutse suna amfani da farin foda don inganta riko.
Roger Aines, darektan Shirin Carbon a Lawrence Livermore National Lab, ya gaya wa MIT Technology Review: "Wannan wata babbar dama ce, da ba ta ci gaba ba, na iya kawar da yawancin carbon dioxide."
Rahoton ya ci gaba da cewa masu goyon bayan wannan sabuwar dabarar sun damu da tsadar kayayyaki da kuma hana filaye. Idan aka kwatanta da sauran dabarun raguwa kamar dasa bishiyoyi, wannan tsari yana da tsada. Hakanan yana iya buƙatar ƙasa mai yawa don yada isassun sabbin kayan da aka tono don rage yawan hayaƙin carbon, yana da wahala a haɓaka.
Bird ya kuma yi nuni da cewa gaba daya tsarin na iya cinye makamashi mai yawa, kuma idan ba a auna shi a hankali ba, zai iya kashe fa'idar kama carbon da yake kokarin haifarwa.
A ƙarshe, akwai damuwa da yawa game da gubar waɗannan kayan da amincin sarrafa su. Binciken Fasaha na MIT ya nuna cewa yada ƙurar asbestos a ƙasa da / ko yada shi cikin ƙura don ƙara yawan iska ya haifar da haɗari ga ma'aikata da mazauna kusa.
Bird ya kammala da cewa duk da wannan, sabon shirin na iya zama "zaɓi mai ban sha'awa don ƙara wasu mafita da yawa, saboda duk mun san cewa ba za a sami maganin rikicin yanayi ba."
Akwai dubban samfurori a can. Mutane da yawa za su yi daidai abu iri ɗaya, ko kusan daidai ɗaya, amma tare da bambance-bambancen dabara. Amma wasu samfuran sun ƙunshi mahadi masu guba waɗanda za su iya cutar da mu ko yaranmu. Ko da aiki mai sauƙi na zabar man goge baki zai iya sa mu damu!
Ana iya ganin wasu tasirin matsanancin yanayi - alal misali, an bar rabin masarar da ke kwance a Iowa a baya bayan da Amurka ta yi fama da matsananciyar rauni a ranar 10 ga Agusta.
Kogin Mississippi ya mamaye jihohi 32 a Amurka da larduna biyu a Kanada, wanda ya mamaye fili fiye da murabba'in mil miliyan 1.245. Shannon1/Wikipedia, CC BY-SA 4.0
Sakamakon ma'aunin mitar kwarara ya nuna cewa adadin narkar da sinadarin nitrogen (DIN) da aka narkar da shi daga jihar rafin Mississippi zuwa mashigin tekun Mexico yana jujjuyawa sosai a kowace shekara. Ruwan sama mai yawa zai samar da mafi yawan abun ciki na nitrogen. An karbo daga Lu et al. , 2020, CC BY-ND
Daga 1958 zuwa 2012, a cikin abubuwa masu tsanani (wanda aka bayyana a matsayin mafi nauyi 1% na duk abubuwan yau da kullun), yawan raguwar hazo ya karu. Globalchange.gov
Dutsen ƙanƙara mafi girma a duniya na iya yin karo da Kudancin Georgia, wanda ke haifar da babbar haɗari ga namun daji da ke kiransa gida.
A hanyoyi da yawa, labarin Texas na karnin da ya gabata shine biyayyar taƙawa na jihar ga ƙa'idar cewa mutane suna mamaye yanayi.
Daga gurbacewar iska da motoci da manyan motoci ke haifarwa zuwa yoyon methane, yawancin hayakin da ke haifar da sauyin yanayi kuma yana cutar da lafiyar jama'a.
Lokacin aikawa: Nov-05-2020