ukufiphala komhlaba

Isibhakabhaka esimboziwe

Ukufudumala kwembulunga yonke kuzoqhubeka nokuthuthuka ngaphandle kwesibonelo. Idala inkinga entsha yesayensi emhlabeni wonke eyaziwa ngokuthi ukufiphala komhlaba wonke. Kumele kucatshangelwe ukuthi ukufudumala kwembulunga yonke kuthinteka ngokwanda kwamagesi abamba ukushisa, okubuye kube nokugcina ukushisa okukhulu emkhathini.

Kulesi sihloko sizokutshela ukuthi i-global dimming iqukethe ini nokuthi iyini imiphumela yako.

Ukushintsha kwesimo sezulu

ukungcola emadolobheni

Ngokwemibono eyenziwe, ukuguquka kwesimo sezulu kungenxa yezinguquko zangaphakathi ohlelweni lwesimo sezulu kanye nokusebenzisana phakathi kwezingxenye zayo kanye/noma izinguquko zokuphoqelelwa kwangaphandle okubangelwa izimbangela zemvelo noma imisebenzi yabantu. Ngokuvamile, akunakwenzeka ukucacisa ngokucacile ubukhulu bethonya lalezi zimbangela. Izibikezelo zokuguquguquka kwesimo sezulu ezivela kwiPhaneli Yohulumeni Bamazwe Ngamazwe Emayelana Nokuguquka Kwesimo Sezulu (IPCC) ngokuvamile kucatshangelwa kuphela umthelela wokwanda kwe-anthropogenic kumagesi abamba ukushisa nezinye izici eziphathelene nesimo sezulu.

Ukufudumala okusheshayo kobuso bomhlaba (global warming) isuselwa ekwandeni komphumela we-greenhouse obangelwa imisebenzi yabantu, kanye nezinguquko ekusetshenzisweni komhlaba, ukungcoliswa kwama-nitrate, njll. Umphumela uwukuthi amanye amandla amuncwa avaleleke endaweni, futhi indawo engaphezulu yeplanethi ivame ukufudumala (IPCC).

Kuyini ukufiphala komhlaba wonke

umonakalo wokufiphala komhlaba wonke

Kafushane nje, ukufiphala komhlaba kuphambene, nakuba lokhu kungqubuzana kuncane. I-Global dimming yigama elibhekisela ekwehleni kwemisebe yelanga efinyelela ebusweni bomhlaba ngenxa yokwanda kwemisebe yelanga. I-albedo yamafu aphansi idala umphumela wokupholisa phezulu.

Kukholakala ukuthi ukwanda kwama-aerosols asemoyeni, okufana nekhabhoni emnyama (amalahle) noma izinhlanganisela zesulfure, okubangelwa imisebenzi yabantu, ikakhulukazi ukushiswa kwezinto zokubasa ezimbiwa phansi ezimbonini nezokuthutha. Ukufiphala komhlaba wonke kungase kuholele ososayensi ekubukeni phansi umthelela wamagesi abamba ukushisa, okuvala kancane ukufudumala komhlaba. Imithelela iyahlukahluka ngendawo, kodwa emhlabeni jikelele, ukwehliswa cishe ku-4% eminyakeni engamashumi amathathu (1970-1990). Lo mkhuba ushintshile ngeminyaka yawo-90 ngenxa yezinyathelo zokunciphisa ukungcola okubonakalayo.

Ubufakazi bokufiphala komhlaba

ukufiphala komhlaba

Ake sibone ukuthi buyini ubufakazi obuhlukene bokufiphala komhlaba:

Ukuncipha kwemisebe yelanga efinyelela emhlabeni

Umsebenzi wokuqala oshicilelwe ubonakala ungoka-Atsushi Omura maphakathi nawo-1980, owathola ukuthi imisebe yelanga efika emhlabeni yehle ngo. ngaphezu kwamaphesenti angu-10 uma kuqhathaniswa neminyaka engama-30 edlule.

Ngakolunye uhlangothi, uGerald Stanhill ubone ukwehla okukhulu kokukhanya kwelanga okungama-22% kwa-Israel phakathi kuka-1950 no-1980 ngenkathi kukala ukukhanya kwelanga kuphrojekthi yesistimu yokunisela e-Israel. UStanhill uqambe igama elithi attenuation global noma global attenuation.

Kwenye ingxenye yoMhlaba, uBeate Liepert wafinyelela esiphethweni esifanayo e-Wild Alps. Ngakho-ke, ukusebenza ngokuzimela, imiphumela efanayo yatholakala ezingxenyeni ezihlukene zomhlaba: Phakathi kuka-1950 no-1990, izinga lamandla elanga afinyelela ebusweni bomhlaba lehla ngo-9% e-Antarctica, ngo-10% e-United States. 30% e-United States. I-Russia ne-United Kingdom 16%). Izibalo ezinkulu zokunciphisa zitholwe ezindaweni ezimaphakathi neNyakatho Nenkabazwe, kanti izifunda ze-spectrum ebonakalayo ne-infrared yizo ezithinteka kakhulu.

Ukuncipha kwezinga lokuhwamuka ethreyini noma ethangini

Olunye ucwaningo oluwusizo kakhulu lapho uqhathanisa imiphumela yilelo lamazinga okuhwamuka ezitsheni (isilinganiso sokuhwamuka kwansuku zonke okukhiqizwa ishidi lamanzi logqinsi oluthile). Amarekhodi okuhwamuka ahlanganiswe ngokucophelela phakathi neminyaka engu-50 edlule noma ngaphezulu.

Uma kubhekwa izinga lokushisa lomhlaba elikhuphukayo, singalindela ukuthi umoya wome kakhulu kanye nenani lokuhwamuka komhlaba likhuphuke. Ngawo-1990, ososayensi baxwayisa ngokuthi, ngokuxakayo, ukuphawula phakathi neminyaka engu-50 edlule kwakubonise okuhlukile. Imiphumela kaRoderick kanye noFarquhar ocwaningweni lwabo lokuhwamuka ku Ibhodwe linciphise ukuhwamuka eminyakeni engama-50 edlule.

Ukuncipha kwamazinga okuhwamuka kwamadiski omhlaba kubonisa izinguquko ezinkulu kumjikelezo wamanzi womhlaba ezingaholela emithelela ebalulekile yezemvelo kanye nenhlalo-mnotho.

Imizila yokujiya esuka ezindizeni

Ezinye izazi zezulu, ezinjengoDavid Travis, zicabanga ukuthi imizila yejethi ingase ihlobane nokufiphala komhlaba. Ukuhamba kwezindiza zezentengiselwano kwaphazamiseka izinsuku ezintathu ngemva komhla zingama-11/2001, XNUMX, okunikeza ithuba lokubona isimo sezulu sase-US ngaphandle kwemiphumela ecatshangelwayo yokuphikisana nezimo ezinezingqinamba zokuzinzisa komoya womkhathi (isimo esingajwayelekile sesenzo).

Imiphumela etholakele ibihlaba umxhwele ngandlela thize. Amazinga okushisa (ngokwe-oscillation yokushisa) akhuphuke ngo-1ºC phakathi nezinsuku ezintathu, okuphakamisa ukuthi ubukhona bokuvinjwa kwezindiza ngokuvamile kungakhuphula izinga lokushisa ebusuku kanye/noma kunciphise amazinga okushisa emini ngezinga elikhulu kunalokho obekucatshangwa ngaphambilini.

Imiphumela

Abanye ososayensi manje bakholelwa ukuthi imiphumela ye-global dimming ivala imiphumela yokufudumala kwembulunga yonke, ngakho ukulungisa ukufiphala komhlaba. ingaba nomthelela omkhulu futhi ongalindelekile emazingeni okushisa olwandle.

Enye inkolelo-mbono ukuthi amazinga okushisa afudumele angaholela ekubalekeni ngokushesha nokungenakulungiseka kwamadiphozithi amakhulu e-methane hydrate okwamanje avaleleke phansi olwandle, akhiphe i-methane gas (IPCC), okungenye yamagesi abamba ukushisa anamandla kakhulu.

Ngokungeziwe emiphumeleni yomhlaba wonke, umcimbi wokufiphala komhlaba nawo unemiphumela yesifunda. Umlotha wentabamlilo osemoyeni ungabuyisela imisebe yelanga emkhathini futhi upholise iplanethi. Ukuba khona kwezinhlayiya ezingcolisa umoya kungabangela izinkinga zempilo kubantu (uhlelo lokuphefumula).

Ngithemba ukuthi ngalolu lwazi ungafunda kabanzi mayelana ne-global dimming nezici zakhona.


Amazwana, shiya okwakho

Shiya umbono wakho

Ikheli lakho le ngeke ishicilelwe. Ezidingekayo ibhalwe nge *

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  1. Ubhekele imininingwane: Miguel Ángel Gatón
  2. Inhloso yedatha: Lawula Ugaxekile, ukuphathwa kwamazwana.
  3. Ukusemthethweni: Imvume yakho
  4. Ukuxhumana kwemininingwane: Imininingwane ngeke idluliselwe kubantu besithathu ngaphandle kwesibopho esisemthethweni.
  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.

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