Uphononongo olutsha olwenziwa ngabaphandi kwiYunivesithi yaseSydney lubonisa ukuba ukhenketho lwehlabathi, ishishini leetriliyoni zeedola, linegalelo elikhulu ekukhutshweni kwegesi ye-greenhouse kunye nekhabhoni yayo yanda ngokukhawuleza.
Ukhenketho lwangaphakathi nolwamazwe ngamazwe luthatha ipesenti ezisibhozo zokukhutshwa kwekharbon diokside (CO2) iyonke kwihlabathi jikelele, abaphandi baye bafumanisa.
Uphononongo lwalusekwe kwidatha evela kumazwe ali-189 kwihlabathi jikelele. Ibonise ukuba indawo yekhabhoni yoshishino yayiqhutywa ikakhulu yimfuno yohambo lomoya oluthatha amandla ngamandla.
"Ukhenketho lusetelwe ukukhula ngokukhawuleza kunamanye amacandelo amaninzi ezoqoqosho," kunye nengeniso eqikelelwa ukuba ikhule ngeepesenti ezine ngonyaka nge-2025, utshilo umbhali okhokelayo uArunima Malik, umphandi kwisikolo seshishini seYunivesithi yaseSydney.
Ushishino lwezophapho luthatha iipesenti ezimbini zazo zonke izinto ezikhutshwa ngabantu ze-C02, kwaye beziya kuba kwindawo ye-12 ukuba belilizwe. Ngokutsho kwe-International Air Transport Association (IATA), inani elipheleleyo labakhweli bomoya lilindeleke ukuba liphindwe kabini ngo-2036 ukuya kwi-7.8 yezigidigidi ngonyaka.
Isiqingatha se-14 yepesenti yokwanda kwe-emissions ekhutshwayo ngenxa yokhenketho lwehlabathi kwenzeka kumazwe anengeniso ephezulu ukusuka ku-2009 ukuya ku-2013, uphando lufumene. Nangona kunjalo, amazwe anengeniso ephakathi abhale elona zinga lokukhula liphezulu kwi-17.4 yeepesenti ngonyaka ngeli xesha.
Njengakumashumi eminyaka adlulileyo, iUnited States yayiyeyona ndawo ikhupha ikharbhoni ephuma kukhenketho. IJamani, iKhanada neBritani nazo bezikwishumi eliphambili.
I-China ibikwindawo yesibini kwaye iIndiya, iMexico, neBrazil bezikwindawo yesi-4, yesi-5 neyesi-6 ngokulandelelanayo.
"Sibona ukukhula ngokukhawuleza kwemfuno yokhenketho evela eChina naseIndiya kule minyaka imbalwa idlulileyo, kwaye silindele ukuba lo mkhwa uya kuqhubeka kwiminyaka elishumi ezayo okanye kunjalo," uYa-Sen Sun, unjingalwazi kwiYunivesithi yaseQueensland Business School eOstreliya, kunye no-co-umbhali wesifundo, uxelele i-AFP.
Amazwe akwiziqithi ezincinane njengeMaldives, iMauritius, iCyprus, kunye neSeychelles abone phakathi kwama-30 ekhulwini nama-80 ekhulwini okukhutshwa kokhenketho lwezizwe ngezizwe.
UMalik ukholelwa ukuba ukhenketho luya kukhula ngezinga leepesenti ezine zonyaka, ngaphezu kwamanye amacandelo amaninzi ezoqoqosho. Yiyo loo nto “kubalulekile” ukuyenza igcineke, utshilo. “Sicebisa ukuba ubhabhe kancinci, apho kunokwenzeka. Zama ukuhlala ubopheleleke eMhlabeni ukunciphisa ukukhutshwa kwezinto ezikhutshwayo. ”
