Ugwadule luyinkinga ejwayelekile yokucekelwa phansi komhlaba. Kuqukethe iqiniso lokuthi umhlaba ovundile uphenduka izingwadule ezingenamswakama nezimila. Ngenxa yalokhu, izindawo ezinjalo azikufanelekeli ukuphila komuntu, futhi yizinhlobo ezithile zezitshalo nezilwane kuphela ezizokwazi ukuzivumelanisa nokuphila ezimweni ezinjalo.
Izimbangela zokwenziwa ihlane
Kunezizathu eziningi zokuthi kungani kwenzeka inhlabathi igwadule. Ezinye zingokwemvelo ngokwemvelo, njengoba zivela ezimweni zemvelo, kepha izizathu eziningi zidalwa yimisebenzi ye-anthropogenic.
Cabanga ngezizathu ezihamba phambili eziholela ekugwadleni kwenhlabathi:
Ukuntuleka kwemithombo yamanzi... Isomiso singenzeka ngenxa yokuntuleka kwemvula okungajwayelekile ngesikhathi sokwanda kwezinga lokushisa lomoya. Ukushoda kwemithombo yamanzi kungenxa yokuba kude kwemizimba yamanzi, ngakho-ke umhlaba uthola umswakama onganele;
Ukuguquka kwesimo sezulu... Uma izinga lokushisa lomoya likhuphukile, ukukhuphuka komswakama kuye kwanda, nemvula yehlile, kuzobakhona ukoma kwesimo sezulu;
Ukugawula izihlahla... Uma amahlathi ebhujiswa, inhlabathi iba engavikelekile ekugugulekeni kwamanzi nomoya. Futhi, inhlabathi izothola inani eliphansi lomswakama;
Imfuyo eklabisa ngokweqile... Indawo lapho izilwane zidla khona ngokushesha ilahlekelwa izimila zayo, futhi umhlaba ngeke uthole umswakama owanele. Ugwadule luzokwenzeka ngenxa yezinguquko zemvelo;
Ukufa ngokwemvelo... Lapho izimbali zinyamalala khona manjalo ngenxa yokungcola, ngokwesibonelo, ngezinto ezinobuthi futhi ezinobuthi, inhlabathi izithola inciphe kakhulu;
Umsele onganele... Lokhu kwenzeka ngenxa yokwephulwa kohlelo lwamanzi, okwenziwe noma okungokwemvelo;
Ukwenza usawoti emhlabathini... Inkinga efanayo yenzeka ngenxa yesenzo samanzi angaphansi komhlaba, ukungalingani kubhalansi kasawoti emisebenzini yezolimo noma ushintsho kubuchwepheshe bokulima umhlaba;
Ukwehlisa izinga lamanzi angaphansi komhlaba... Uma amanzi angaphansi komhlaba eyekile ukondla umhlaba, khona-ke kungekudala uzolahlekelwa ukuzala kwawo;
Ukuqedwa komsebenzi wokulungisa kabusha... Uma umhlaba unganiselwa, khona-ke ukugwaduleka kuzokwenzeka ngokuswela umswakama;
Kunezinye izizathu zokushintsha inhlabathi, okuholele ekubeni ugwadule.
Izinhlobo zokwenziwa ihlane
Kunezinhlobo eziningi zokuba ugwadule ezingahlukaniswa, kuya ngezimbangela zokushintsha kwenhlabathi. Owokuqala ngosawoti. Kungaba okuyisisekelo noma kwesibili, lapho usawoti unqwabelana emhlabathini ngokwemvelo noma ngenxa yezinguquko ezicijile ezimweni sezulu nasembusweni wamanzi.
Okwesibili, lokhu ukugawulwa kwamahlathi, okungukuthi, ukushintsha kwenhlabathi ngenxa yokuqothulwa kwamahlathi nokubhujiswa kwezimila. Okwesithathu, kunokucekelwa phansi kwamadlelo, nakho okuluhlobo lokugwaduleka. Futhi, okwesine, ukugeleza kolwandle olwandle, lapho izinga lamanzi lehla kakhulu futhi phansi, okungenamanzi, kuba umhlaba owomile.
Incazelo yokuguquka komhlaba ube yingwadule
Ugwadule luchazwa yizinkomba eziningi. Lesi yisilinganiso sikasawoti womhlabathi nobuningi bezihlahla, indawo yokudonswa komhlaba nokuhlangana komhlaba. Ukukhethwa kwezinkomba kuxhomeke ohlotsheni lwogwadule. Inketho ngayinye inesilinganiso sayo, esingasetshenziswa ukunquma izinga lokugwaduleka komhlaba.
Ngakho-ke, ukwanda kwenhlabathi kuyinkinga ephuthumayo yemvelo yesikhathi sethu. Vele, siyazi izingwadule eziningi emhlabeni ezavela ezinkulungwaneni zeminyaka edlule. Uma singenzi lutho, sizibeka engcupheni yokuthi kungekudala wonke amazwekazi omhlaba azogcwala izingwadule, futhi impilo ngeke isaba khona. Umsebenzi omkhulu wezolimo nowezimboni wabantu owenzekayo, ukwanda kwehlane kwenzeka ngokushesha. Kuhlala kuphela ukuqagela ukuthi iminyaka emingaki nokuthi ihlane elisha lizovela kuphi emhlabeni.
