El isiqandisi noma isiqandisi njengoba lo mshini waziwa kwamanye amazwe, ungomunye wemikhakha eminingi amandla ichitha indlu njengoba isetshenziswa njalo.
Ngaphakathi izinto zokusebenza kwemvelo noma ukulungele imvelo sithola ubuchwepheshe be-greenfreeze esindisa amandla afinyelela kuma-80% uma kuqhathaniswa nesiqandisi esivamile.
Lobu buchwepheshe buthuthukiswe ngu Greenpeace ngo-1992 okwazile ukuklama amafriji ngaphandle kokusebenzisa i- ama-hydrofluorocarbons (Ama-HFC) angcolisa kakhulu amagesi futhi alimaza ungqimba lwe-ozone ngaphezu kokufaka isandla ekuguqulweni kwesimo sezulu.
Esikhundleni salokho, ubuchwepheshe be-greenfreeze busebenzisa amagesi i-propane ne-butane njengesifriji esingakhiqisi ukungcoliswa kwemvelo. Kepha futhi zisebenza kahle kakhulu futhi konga amandla ekusetshenzisweni kwansuku zonke.
Zingaphezu kwezigidi ezingama-400 iziqandisisi ezinobuchwepheshe be-greenfreeze obukhiqizwe ngemikhiqizo ehlukene zithengisiwe emhlabeni wonke selokhu zethulwa.
Kusesekude ukuthi zonke iziqandisi zisebenzise lobu buchwepheshe ngoba emazweni amaningi kusagunyaziwe ukusebenzisa ama-HFCs kuze kube u-2015, njengosuku oluphezulu.
Kepha hhayi thina njengabathengi singakusekela lokhu ubuchwepheshe obusebenzayo kanye nemvelo ukuze iqhubeke nokwanda emhlabeni jikelele ngokuthola eyodwa lapho siyidinga. Uma sibheka amalebula futhi sifuna imininingwane mayelana nezinto esizisebenzisayo, kubalulekile ukuthi sikwazi ukukhetha okwemvelo nokonga kakhulu.
Iseluleko esilula esisiza ukonga ugesi ukubeka ifriji kude nemithombo yokushisa ekhishini ngoba uma kungenjalo izosebenzisa imali efinyelela ku-15% ngaphezulu amandla.
Ushintsho olujwayelekile nolungcolisa kwezobuchwepheshe kungenzeka ukuthi lubuyiselwe olungezemvelo kakhudlwana, kepha kudinga umzamo wemikhakha eyahlukene yezenhlalo ukufeza lezi zinhloso.
Ukube yonke imishini kagesi ibingokwemvelo, ikakhulukazi iziqandisi, beyizovimbela amathani amagesi angcolisayo ukuthi afinyelele emkhathini.