Kunamaphrojekthi we-geoengineering ahlose ukuthonya ukuguquka kwesimo sezulu. Lawa ngamaphrojekthi azama ukunciphisa noma ukunxephezela izinkinga umhlaba wethu onazo ngemiphumela ehlukile yokuguquka kwesimo sezulu.
Kodwa-ke, izenzo ezenziwa yi-geoengineering ziphakamisa imibuzo yokuziphatha okuhle, ngoba inezingozi ezahlukahlukene emhlabeni. Ngabe ufuna ukwazi ukuthi yini eyenziwayo ukunciphisa imiphumela yokuguquka kwesimo sezulu?
Ukwenziwa kwe-geeoengineering
Abaphenyi abavela kuwo wonke umhlaba bebelokhu bezama amashumi eminyaka ngalolu hlobo lwephrojekthi efuna ukulungisa izimo ezahlukahlukene zesimo sezulu ngokuthanda ukudala noma ukuvimbela imvula ezindaweni ezithile, ukuphatha amazinga emisebe yelanga noma ukunciphisa i-carbon dioxide emoyeni.
Isibonelo, i-solar geoengineering isebenza ngayo phatha inani lokukhanya kwelanga okungena emkhathini, ukuze kulawulwe ukufudumala komhlaba kanye nokunciphisa ukufudumala komhlaba. Kumamodeli wokuhlola, isenzo se- i-solar geoengineering ingase ihlehlise imiphumela yokushintsha kwesimo sezulu, nakuba kungaziwa ukuthi izosebenza ngempela yini.
Isimo sezulu somhlaba sizoshintsha kungakhathaliseki ukuthi kwenzekani, kodwa singazama ukwehlisa imithelela yalokhu kuguquguquka kwesimo sezulu. Lobu buchwepheshe bungazuzisa abantu abaningi futhi bunciphise ukulimala kwabanye, kodwa bungenza okuphambene. Ngakho-ke, kubalulekile ukucabangela amaphrojekthi afana nalokhu labo ababhekana nomthelela wezikhukhula emphakathini wethu.
Noma kunjalo, geoengineering asinciphisi isidingo sokwakha uhlelo lwamandla ahlanzekile futhi siholele umnotho ekuguqukeni kwamandla okususelwa emandleni ahlanzekile avuselelekayo.
Amanye amaphrojekthi anjalo ayatholakala emakethe, njengoba kuboniswe yiqiniso lokuthi ngoMashi 2012 uMphakathi waseMadrid wabele cishe ama-euro ayi-120.000 kuphrojekthi yokwandisa iqhwa usebenzisa ubuchwepheshe "bokulawulwa kwamafu", indlela ehlobene imvula yokwenziwa enkampanini yaseJalimane iRadimeter Physics.
Izinqubo zemvelo ezilinganayo
Enye iphrojekthi ye-geoengineering ukudala izihlahla zokwenziwa ezikwazi ukwenza lokhu bamba futhi ugcine i-CO2 njengeyona nto yangempela, kepha ngejubane elikhulu nokusebenza kahle. Kukhona futhi amaphrojekthi afaka ama-microcrystals emkhathini ukuze abuyisele imisebe yelanga endaweni eyinsimbi olwandle, okukhuthaza ukukhula kwezitshalo ezincane ezimunca i-CO2 futhi ziyidonsele phansi olwandle. Lokhu kuphakamisa imibuzo efana naleyo okuxoxwe ngayo inkulumo-mpikiswano ngokuguquguquka kwesimo sezulu kanye nokufudumala kwembulunga yonke.
Ngalobu buchwepheshe sidlala njengoNkulunkulu futhi kufanele sibushiye manje njengoba sesisesikhathini, ngoba imvelo inemijikelezo yayo ngaso sonke isikhathi futhi asazi ukuthi lokhu kungaba namiphi imiphumela esimweni sezulu.
