Iigesi zeGreenhouse zibaluleke kakhulu ukuze kubekho ubomi eMhlabeni; Nangona kunjalo, ngenxa yokukhutshwa okungapheliyo kweegesi ezinjengekhabhon diokside okanye imethane, imozulu iyatshintsha kakhulu emhlabeni. Ukuzama ukuyigcina iphantsi kolawulo, izidalwa ezahlukeneyo zigcina irekhodi yedatha yasemoyeni enceda oochwephesha bezulu ukuba benze uqikelelo oluchanekileyo, umzekelo i-NOAA Greenhouse Gas Index, esekwe kwidatha yomoya, isebenza yazi ukuba kwenzeka ntoni kwimozulu ngoku.
Kwaye okwenzekayo akulunganga: Iigesi ze greenhouse zonyuke nge 40% phakathi kuka 1990 no 2016.
Iyintoni umphumo wegreenhouse?
Isiphumo se greenhouse kukunyuka kwamaqondo obushushu ngenxa yoxinaniso lweegesi Ngumphunga wamanzi (H2O), icarbon dioxide (CO2), imethane (CH4), i-nitrogen oxide (NOx), i-ozone (O3) kunye ne-chlorofluorocarbons (CFCs).
Xa imitha yelanga ifikelela eMhlabeni iwutshisa ngokukhawuleza umhlaba, kuba i-atmospheric iyabonakala ekukhanyeni okubonakalayo kodwa kuncinci kwimitha ye-infrared. Nje ukuba bachukumise umhlaba, bayawenza ikhupha imitha ye-infrared ethi ikakhulu ifunxwe ngumoya.
Nangona inani lamandla elikhutshelwa emajukujukwini lifana nelo lifunxwayo, umphezulu womhlaba kufuneka ufikelele kubushushu apho zombini zihamba khona zilingana, eyi-15ºC ngokomndilili.
Ukuba esi siphumo besingaveliswanga, sinokuba neqondo lobushushu eliphakathi komhlaba -18ºC. Kodwa ukuba i-greenhouse concentrations iqhubeka nokunyuka, iziphumo zenguqu yemozulu zinokuba zibi, kuba ubushushu obuqhelekileyo buya kunyuka kuphela. Ngelishwa, yile nto kanye eyenzekayo.
Zithini iziphumo zobushushu bomhlaba?
Iziphumo zobushushu behlabathi zininzi kwaye zahlukahlukene, phakathi kwazo sifumana:
- Amaqondo obushushu afudumeleyo
- Ukusasazeka kwezifo
- Izaqhwithi ezininzi
- Amaza obushushu anamandla
- Umtsalane
- Ukuphela kwezilwanyana nezityalo
- Ukunyuka kwamaqondo olwandle
- Ezona nkqwithela ziyingozi
Ngolunye ulwazi, nqakraza apha.