Umfanekiso - NASA / JPL-Caltech / Charles Miller
Ukukhutshwa kwekhabhoni dayoksayidi ephezulu kubangela iingxaki ezininzi eluntwini, njengoko ziqinisa isiphumo sendawo yokugcina izinto. Ngenxa yoko, amaqondo obushushu anyuka kwaye iipali ziyanyibilika, nto leyo enokububeka engozini ubomi babantu abaninzi.
Enye yeendawo ezifundwayo yiAlaska, ngakumbi itundra. Ukusukela ngo-1975 ukuza kuthi ga ngoku isixa se-CO2 esikhutshiweyo ngenxa yokunyibilika inyuke nge-70%, njengoko kuchaziwe yi-National Aeronautics and Space Administration, yaziwa ngoonobumba bayo ngesiNgesi iNASA.
Olu phononongo, olukhokelwe ngumphandi wezomoya waseHarvard University Roisin Commane, uyakutyhila oko amaqondo obushushu ashushu kunye nekhephu elinyibilikayo linokunyusa ukukhutshwa kwekhabhoni dayoksayidi kwiitundras, ngokungathandabuzekiyo esiba sisiba mandundu imeko yokufudumeza komhlaba, kuba umhlaba ongaphezulu kweqondo lama-60 degrees latitude latitude unezixa ezikhulu zekhabhoni ngokohlobo lwezinto eziphilayo kwizityalo ezifileyo.
UComanne wachaza oko Ngexesha lasehlotyeni le-arctic, unyibilikisi lomhlaba kunye neentsholongwane ziyayichitha le nto yezinto eziphilayo, zivelise isixa esikhulu se-CO2. Nangona umhlaba uphinda ubanda kwakhona ngo-Okthobha, ukukhutshwa okunamandla kwale khompawundi kuyaqhubeka de umhlaba ube ngumkhenkce ngokupheleleyo.
Ngenxa yoko, Imozulu iya ifudumala ekhokelele ekubeni itundra ithathe ukuya kuthi ga kwiinyanga ezintathu ukuphinda iphinde ibuyeXa ngaphambili kwakuthatha inyanga kuphela. Ukongeza, idatha efunyenwe kwiinqaba zokujonga ibonisa ukwanda rhoqo kwekhabhon diokside, eyenza amaqondo obushushu ekwindla nasebusika athambile.
Ke, umhlaba we-tundra usebenza njengesikhulisi sokutshintsha kwemozulu.
Ungasifunda isifundo apha (ngesiNgesi).