Imihlaba eyenziwe ngomthi inegalelo kubushushu bomhlaba

imihlaba enemithi

Kwiminyaka engama-26 eyadlulayo waqala uvavanyo olwalusenzeka lonke elixesha kwaye uzama ukufumanisa ukuba luchaphazela njani ukwanda kwamaqondo obushushu kwimihlaba yehlathi. Impendulo efunyenwe zizazinzulu ityhila impendulo ejikelezayo kunye neyothusayo.

Ngaba uyafuna ukwazi ngakumbi ngokufumanisa olu phando kunye nokubaluleka kwalo?

Imihlaba enomthi

Iziphumo ezifunyenwe kolu vavanyo zezi zilandelayo: ukufudumeza umhlaba kukhuthaza amaxesha okuba nentabalala ukukhutshwa kwekhabhoni kuyo ukuya emoyeniukutshintshana namaxesha okungabikho kwelahleko ebonakalayo ekugcinweni kwekhabhoni engaphantsi komhlaba Oku kuyenza ijikeleze kwaye oko kuthetha ukuba, kwihlabathi apho amaqondo obushushu esiya enyuka, kuyakubakho iindawo ezingaphezulu apho i-carbon self-feedback iyakuvela, eyakongeza ekufumaneni i-carbon dioxide esemoyeni ngenxa Ukutsha kwezibaso kwaye kuza kuba negalelo ekukhawuleziseni ubushushu behlabathi.

Ngamanye amagama, kuyakubakho amaxesha apho imihlaba enemithi iza kukhupha ikhabhoni eninzi emoyeni kunye namaxesha apho ingayi. Elo xesha liya kuqiniswa ngu ukunyuka kwamaqondo obushushu ehlabathi eya kubangela ukuba umhlaba ufudumale kwaye, ke, ikhuphe ikhabhoni eninzi emoyeni.

Olu phononongo ngumsebenzi weqela likaJerry Melillo, ovela kwiLebhu yeLwandle yeLwandle (MBL, ngesifinyezo sayo ngesiNgesi), esiqhagamshelene neDyunivesithi yaseChicago, eMelika.

Uvavanyo

Uvavanyo lwaqala ngo-1991, xa kwindawo yehlathi eliqaqambileyo kwihlathi laseMassachusetts bangcwaba iintambo zombane kwiziza. Ukulinganisa ubushushu behlabathi, bawufudumezile umhlaba iidigri ezintlanu ngaphezulu kweqondo lobushushu begumbi ukuthelekisa phakathi kwabo. Emva kweminyaka engama-26 esaqhubekekayo, iziza ezonyuse ubushushu bazo ngamaqondo amahlanu, balahlekelwe yi-17% yekhabhoni ebigcinwe kwizinto eziphilayo.

Oku kwenza umngcipheko wobushushu behlabathi usondela ngokukhawuleza kwaye kunzima ukuyeka.


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