Le webhusayithi isebenzisa amakhukhi ukuqinisekisa ukuthi uthola ulwazi olungcono kakhulu ngenkathi uphequlula. Ukuchofoza okuthi “Thola” kusho ukuthi uyayamukela le migomo.
Ososayensi bahlola indlela yokusebenzisa i-asbestos emfucumfucwini yezimayini ukugcina inani elikhulu le-carbon dioxide emoyeni ukusiza ekubhekaneni nenkinga yesimo sezulu.
I-Asbestos iyiminerali yemvelo eyayisetshenziswa kabanzi njengokuvikela ukushisa kanye nokuvimbela ilangabi ezakhiweni. Lokhu kusetshenziswa kwaziwa kakhulu ngezakhiwo zayo ezibangela umdlavuza, kodwa kuye kwasetshenziswa emabhuleki ezimoto athile kanye namathayili ophahla nophahla embonini ye-chlorine. Nakuba amazwe angu-67 okwamanje evimbela ukusetshenziswa kwezinto zefayibha, i-United States ayilona elinye lawo.
Manje, abacwaningi bagxile ezinhlotsheni ezithile ze-asbestos enemicu, okuyimikhiqizo yemfucuza evela ekumbeni. Ngokusho kuka-Eos, ikhwalithi ephezulu kakhulu eyenza i-asbestos ibe yingozi ekuphefumuleni futhi iyenza ikwazi ukubamba izinhlayiya ze-carbon dioxide ezintanta emoyeni noma ezincibilikiswe emvuleni. Umbiko uchaza ukuthi indawo ephezulu yemicu iyenza "isabela kakhulu futhi kube lula ukuyiguqula" ibe yi-carbonates engenangozi uma ixutshwe ne-carbon dioxide. Le nqubo yenzeka ngokwemvelo lapho i-asbestos ivezwa amagesi okushisa.
Ngokusho kwe-MIT Technology Review, lezi zinto ezizinzile zingavala amagesi okushisa umhlaba izigidi zeminyaka futhi ziye zabonakala ziyindlela ephumelelayo yokumunca inani elikhulu le-carbon dioxide emkhathini. Ososayensi banethemba lokuqeda ukukhishwa kwe-carbon “okukhulu” okuvela emisebenzini yezimayini kuqala, bese bandisa imizamo yokunciphisa ukukhishwa kwegesi okushisa umhlaba.
UGregory Dipple, umcwaningi oholayo kulo mkhakha, utshele i-MIT Technology Review: “Eminyakeni eyishumi ezayo, ukususa i-carbon ezimayini kuzosisiza kuphela ukwakha ukuzethemba kanye nobuchwepheshe ukuze kuncishiswe ukukhishwa kwegesi. Futhi ukumba kwangempela kuyenziwa.”
Ngokusho komsakazi we-Kottke Ride Home Podcast uJackson Bird (Jackson Bird) ubike ukuthi lapho lezi zinto zingena olwandle ngokugeleza kwamanzi, kwenzeka futhi ukutholakala kwamaminerali. Izinto eziphilayo zasolwandle zisebenzisa lawa ma-ion ukwenza amagobolondo namathambo azo ekugcineni abe yi-limestone kanye nezinye izinto ezibanjwayo. Itshe le-carbon.
Ukugcinwa kwekhabhoni kuyindlela edingekayo yokunciphisa inani lekhabhoni dayoksayidi emoyeni. Ngaphandle kwayo, cishe ngeke sifinyelele “imigomo yethu yekhabhoni” futhi sigweme imiphumela emibi kakhulu yenkinga yesimo sezulu.
Ososayensi bahlola nendlela yokusebenzisa imfucuza evela kwezinye izimboni zezimayini njenge-nickel, ithusi, amadayimane kanye ne-platinum ukuze babambe ikhabhoni. Balinganisela ukuthi kungase kube nezinto ezanele zokuvimba yonke ikhabhoni dioxide abantu abake bayikhipha, nokuningi, kubika uBird.
Manje, izinto eziningi zinamathele emadwaleni aqinile angakaze avele emoyeni, okuzoqala lokho kusabela kwamakhemikhali. Yingakho ososayensi abafunda ngokususwa kwekhabhoni bezama ukuthola izindlela zokwandisa ukuvezwa nokusheshisa le mpendulo evame ukuba kancane ukuze baguqule imfucuza yezimayini ibe umgqugquzeli onamandla wokumelana nenkinga yesimo sezulu.
Umbiko we-MIT uchaza ukuthi zingaki izindlela zokungenelela ezihlolwe ngokumba izinto, ukuzigaya zibe yizinhlayiya ezincane, bese zisakazwa zibe yizingqimba ezincane, bese zisakazwa emoyeni ukuze kwandiswe ukuvezwa kwendawo yokusabela kwezinto ze-carbon dioxide. Ezinye zidinga ukushisa noma ukwengeza i-asidi ekwakhiweni. I-Eos ibika ukuthi ezinye zisebenzisa ngisho nama-bacterial mat ukuqala ukusabela kwamakhemikhali.
“Sifuna ukusheshisa le nqubo futhi siyiguqule kusukela enqwabeni yemfucuza ye-asbestos ibe yi-carbonate engenangozi nhlobo,” kusho isazi se-geomicrobiologist uJenine McCutcheon, ozinikele ekuguquleni imisele ye-asbestos elahliwe ibe yi-Magnesium carbonate engenangozi. Abaqeqeshi bomzimba kanye nabakhwela amatshe basebenzisa izinto ezimhlophe ukuze bathuthukise ukubamba.
URoger Aines, umqondisi we-Carbon Program eLawrence Livermore National Lab, utshele i-MIT Technology Review: “Leli yithuba elikhulu, elingakathuthukiswa, elingasusa i-carbon dioxide eningi.”
Umbiko uqhubeka uthi abasekeli baleli qhinga elisha bakhathazekile ngezindleko kanye nemikhawulo yomhlaba. Uma kuqhathaniswa nezinye izindlela zokunciphisa njengokutshala izihlahla, le nqubo iyabiza. Kungase futhi kudingeke indawo enkulu ukuze kusatshalaliswe izinto ezintsha ezanele ezimboziwe ukuze kuncishiswe kakhulu ukukhishwa kwekhabhoni, okwenza kube nzima ukukhuphula.
UBird uphinde waveza ukuthi yonke inqubo ingadla amandla amaningi, futhi uma ingalinganiswa ngokucophelela, ingase inciphise izinzuzo zokubamba ikhabhoni ezama ukuyidala.
Okokugcina, kunezinkinga eziningi eziphathelene nobuthi balezi zinto kanye nokuphepha kokuzisebenzisa. I-MIT Technology Review iveze ukuthi ukusakaza uthuli lwe-asbestos phansi kanye/noma ukulusakaza othulini ukuze kwandiswe ukuhamba komoya kubangele izingozi zokuphepha kubasebenzi kanye nezakhamuzi eziseduze.
UBird uphethe ngokuthi naphezu kwalokhu, uhlelo olusha lungaba “inketho ethembisayo yokwengeza ezinye izixazululo eziningi, ngoba sonke siyazi ukuthi ngeke kube khona ikhambi lenkinga yesimo sezulu.”
Kunezinkulungwane zemikhiqizo laphaya. Abantu abaningi bazokwenza into efanayo, noma cishe ngendlela efanayo, kodwa ngomehluko omncane. Kodwa eminye imikhiqizo iqukethe amakhemikhali anobuthi angalimaza thina noma izingane zethu. Ngisho nomsebenzi olula wokukhetha umuthi wokuxubha amazinyo ungasenza sizizwe sikhathazekile!
Eminye imiphumela yesimo sezulu esibi kakhulu ingabonakala - isibonelo, ingxenye yommbila osicaba e-Iowa yashiywa ngemuva kokuba iMidwestern United States ihlaselwe kakhulu mhla ziyi-10 kuNcwaba.
Isigodi soMfula iMississippi sihlanganisa izifundazwe ezingu-32 e-United States kanye nezifundazwe ezimbili eCanada, sihlanganisa indawo engaphezu kwamamayela-skwele ayizigidi ezingu-1.245. Shannon1/Wikipedia, CC BY-SA 4.0
Imiphumela yokulinganisa imitha yokugeleza ikhombisa ukuthi inani le-nitrogen engaphili (i-DIN) encibilikisiwe evela esifundazweni saseMississippi kuya eGulf of Mexico liyashintshashintsha kakhulu minyaka yonke. Imvula enkulu izokhiqiza okuqukethwe kwe-nitrogen okuphezulu. Kushintshwe ku-Lu et al., 2020, CC BY-ND
Kusukela ngo-1958 kuya ku-2012, ezigamekweni ezinzima kakhulu (ezichazwa njenge-1% enkulu kunazo zonke zezehlakalo zansuku zonke), iphesenti lokwehla kwemvula landa. Globalchange.gov
Intaba-qhwa enkulu kunazo zonke emhlabeni ingase ingqubuzane neNingizimu Georgia, okubangela ingozi enkulu ezilwaneni zasendle ezikubiza ngokuthi ikhaya lazo.
Ngezindlela eziningi, indaba yaseTexas yekhulu leminyaka elidlule iwukwethembeka kombuso esimisweni sokuthi abantu babusa imvelo.
Kusukela ekungcolisweni komoya okubangelwa yizimoto namaloli kuya ekuvuza kwe-methane, ukukhishwa okuningi okufanayo okubangela ukuguquka kwesimo sezulu nakho kulimaza impilo yomphakathi.
Isikhathi sokuthunyelwe: Novemba-05-2020