Izibonelo eziningi zezikhathi zokushisa emlandweni we-geological zinikeza imikhondo.
Isimo sethemba
Ake siqale ngesimo sethemba.
Uma simisa ngokungazelelwe ukukhishwa kwamafutha ezimbiwa phansi, isimo sezulu kancane kancane sizofana nezikhathi zokufudumala. Izimvula ezinamandla zehla eSahara, kuyilapho eningizimu-mpumalanga Melika yahlaselwa yisomiso.
Ukuziphatha kwezilwane nezinyoni
Ezinhlotsheni eziningi zezilwane nezinyoni, izinguquko ezinjalo zesimo sezulu zikhombise ukuba yinkinga; yonke imvelo kwakudingeka ifuduke, iqondiswe amandla kazibuthe, ukuzivumelanisa nempilo. Amabhere wePolar mhlawumbe asinda kuphela ngenxa yemigodi yeqhwa e-Arctic eyedlulele. Amahlathi afudumele e-oki nama-eucalyptus aseningizimu yama-Appalachians athuthelekela emaphethelweni asenyakatho neNew York, ngenkathi izilwane zase-Afrika ezinjengezindlovu nezimvubu zihamba zinqamula i-Europe zaya ohlangothini olufanayo.
Ngeshwa, manje ezindleleni zokufuduka okungenzeka esikhathini esizayo kunamadolobha, imigwaqo nezinye izithiyo, futhi ukweqisa kwesikhutha kuyancibilika olwandle, okungeke kuvumele izimbaza ukuba ziye kwenye indawo, ngoba i-asidi yamanzi olwandle ikhula ngokushesha. Ngaphezu kwalokho, amagesi akhiqizwa isintu adala ukushisa, okuzogcina ukushisa kunamandla amakhulu futhi isikhathi eside, ngokulandelana kweminyaka eyi-100,000.
Noma isibikezelo esinjalo sethemba sithatha ubunzima obukhulu, kepha umlando weplanethi yethu ufakazela ukungavikeleki kwawo. Inhlekelele efanayo yenzeke eminyakeni eyizigidi ezingama-56 edlule futhi yabizwa ngokuthi yi-Late Paleocene thermal maximum.
Ngokungafani nokushisa okuthe xaxa phakathi kwezinhlanga okwenzekile ngenxa yokutsheka, ukuxega nokuzungeza koMhlaba, i-PTM iguqule iplanethi ngaphezu kokuqashelwa. Ukuhlungwa kwe-carbon dioxide kwakuphakame kaningana kunanamuhla, futhi kuhambisana nokufudumala nokuqongelela isikhutha emanzini olwandle, lokhu kwaholela ekubhujisweni kwezinto eziningi zasolwandle kanye nasekuqothulweni kwamadiphozimu e-limestone phansi olwandle.
Izilwandle ne-Antarctica
I-Arctic Ocean isiphenduke itheku elinosawoti elinamanzi asivivi, elizungezwe ihlathi elihlabayo. I-Antarctica imbozwe izihlahla ze-beech, futhi ugu lugcwele udaka oluvela ezimvuleni ezinamandla.
Uma lokhu kwenzeka futhi, futhi lonke iqhwa emhlabeni liyancibilika, izinga lamanzi emhlabeni lizokhuphuka ngamamitha angama-60.
