Ngezinga ngalinye lokufudumala, kulahleka cishe amakhilomitha-skwele ayizigidi ezine e-permafrost

Iqhwa

Lokhu kushiwo ithimba lamazwe omhlaba elenziwe ngabacwaningi abayisithupha abavela eNorway, e-United Kingdom naseSweden, abashicilele ucwaningo kumagazini wesayensi i-'Nature Climate Change '. Ukuze sikwazi ukuthola umqondo wenani le-permafrost elizolahleka ngezinga ngalinye lokushisa, kudingeka sazi ukuthi iyindawo enkulu kuneNdiya.

I-Permafrost, leyo ngqimba yenhlabathi ehlala iqandisiwe okungenani iminyaka emibili, ehlanganisa cishe amakhilomitha-skwele ayizigidi eziyi-15 ebusweni bomhlaba, iyancipha ngenxa yokufudumala kwembulunga yonke.

Inani elikhulu lekhabhoni ligcinwa endaweni eneqhwa, okuyinkinga enkulu namuhla. Njengoba iplanethi ifudumala, leli qhwa liyancibilika, libangele ukuthi izinto eziphilayo ezivaleleke kulo ziqale ukubola. Ngokwenza kanjalo, kukhishwa amagesi abamba ukushisa anjenge-carbon dioxide ne-methane, amabili amagesi amakhulu adala ukwanda kwamazinga okushisa.

Ukufinyelela leso siphetho, Abaphenyi bahlole ukuthi lolu qweqwe lweqhwa luguquka kanjani kulo lonke izwe kanye nobudlelwano balo nezinga lokushisa. Babe sebephenya ukuthi yini engenzeka uma amazinga okushisa enyuka futhi, besebenzisa le datha, bakhe ibalazwe lokusabalalisa iqhwa. Ngakho-ke bakwazi ukubala inani le-permafrost ebelizolahleka uma izinga lokushisa lomhlaba lingavinjelwa ukuba likhuphuke ngaphezu kwama-degree ama-2.

Thaw

Ngenxa yalokhu ukutadisha Ososayensi bakwazile ukuthola ukuthi i-permafrost isengozini enkulu yokushisa komhlaba kunalokho obekucatshangwa ngaphambili: ukuzinzisa isimo sezulu ku-2ºC ngaphezu kwamazinga angaphambi kwezimboni kungasho ukuncibilika okungaphezulu kwama-40% wezindawo ezikhona manje. Uma lokhu kungenzeka, abantu abacishe babe yizigidi ezingama-35 abahlala kulezi zifunda kuzodingeka bathathe ezinye izindlela zokuzivumelanisa nezimo, njengoba imigwaqo nezakhiwo kungadilika.


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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.