Ingabe imfucumfucu yokudla inomthelela omkhulu kangaka esimweni sezulu?
Yebo, ukulahlwa kokudla kuyingxenye enkulu yenkinga yokushintsha kwesimo sezulu. Ngokwezilinganiso ezithile, abantu baseMelika kuphela balahla cishe amaphesenti angama-20 okudla abakuthengayo. Lokhu kusho ukuthi zonke izinsiza ezidingekayo ukuze kukhiqizwe lokhu kudla zimoshwe. Uma uthenga ukudla okuningi kunalokho okudlayo, isimo sakho sezulu sizoba sikhulu kunalokho obekungaba yikho. Ngakho-ke, ukunciphisa udoti kungaba indlela elula yokunciphisa ukukhishwa kwegesi.
Indlela yokulahla kancane?
Maningi amathuba. Uma upheka, qala ngokuhlela ukudla kwakho: Ngempelasonto, thatha imizuzu engu-20 ukuhlela okungenani ukudla kwakusihlwa okuthathu kwesonto elizayo ukuze uthenge ukudla ozokupheka kuphela. Kusebenza umthetho ofanayo uma udla ngaphandle: unga-ode ngaphezu kwalokho okudingayo. Gcina ukudla esiqandisini ukuze kungonakali. Khulisa okungeke kudliwe maduze.
Ingabe kufanele ngifake umquba?
Uma ukwazi, akuwona umqondo omubi. Lapho ukudla kulahlwa endaweni yokulahla imfucumfucu kanye nomunye udoti, kuqala ukubola futhi kukhiphele i-methane emkhathini, kufudumale iplanethi. Nakuba amanye amadolobha aseMelika eseqalile ukuthatha enye yale methane futhi ayicubungule ukuze athole amandla, amadolobha amaningi omhlaba awakwenzi lokho. Ungakwazi futhi ukuhlela ngamaqembu ngokwenza umquba. Ngokwesibonelo, eDolobheni laseNew York, kwakhiwa izinhlelo zokuhlanganisa umquba endaweni eyodwa. Uma umquba wenziwa kahle, i-organic material ekudleni okusele kungasiza ekukhuliseni izitshalo futhi kunciphise kakhulu ukukhishwa kwe-methane.
Izikhwama zephepha noma zepulasitiki?
Izikhwama zokuthenga zamaphepha zibukeka zimbi kakhulu ngokwezinto ezikhishwayo kunalezo zepulasitiki. Nakuba izikhwama zepulasitiki ezivela ezitolo ezinkulu zibukeka zimbi kakhulu ngokuwohloka. Njengomthetho, azikwazi ukuphinda zisetshenziswe futhi zidale imfucuza ehlala isikhathi eside emhlabeni. Kodwa sekukonke, ukupakishwa kubala kuphela cishe u-5% wokukhishwa okuhlobene nokudla emhlabeni jikelele. Okudlayo kubaluleke kakhulu ekushintsheni kwesimo sezulu kunephakethe noma isikhwama osiletha ekhaya.
Ingabe ukugaywa kabusha kuyasiza ngempela?
Nokho, kuwumqondo omuhle ukusebenzisa kabusha amaphakheji. Okungcono, thenga isikhwama esisebenziseka kabusha. Okunye ukupakisha, okufana namabhodlela epulasitiki noma amathini e-aluminium, kunzima ukukugwema kodwa kuvame ukugaywa kabusha. Ukugaywa kabusha kuyasiza uma ugaya kabusha imfucuza yakho. Futhi sikweluleka ukuthi wenze lokhu okungenani. Kodwa okusebenzayo nakakhulu ukunciphisa imfucuza.
Kungani ilebula ingaxwayisi mayelana ne-carbon footprint?
Abanye ochwepheshe baphikisa ngokuthi imikhiqizo kufanele ibe namalebula e-eco. Ngokombono, lawa malebula angasiza abathengi abanentshisekelo ukuthi bakhethe imikhiqizo enamazinga aphansi womthelela futhi banikeze abalimi nabakhiqizi isikhuthazo esengeziwe sokunciphisa ukukhishwa kwabo.
Ucwaningo lwakamuva olushicilelwe kumagazini iSayensi luthole ukuthi ukudla okubukeka kufana kakhulu esitolo kungaba nesimo sezulu esihlukile kuye ngokuthi kwenziwa kanjani. Ibha eyodwa kashokoledi ingaba nomthelela ofanayo esimweni sezulu njengokushayela amakhilomitha angama-50 uma amahlathi emvula ayegawulwa ukuze kutshalwe ukhokho. Nakuba enye ibha kashokoledi ingase ibe nomthelela omncane kakhulu esimweni sezulu. Kodwa ngaphandle kokulebula okuningiliziwe, kunzima kakhulu kumthengi ukuqonda umehluko.
Kodwa-ke, uhlelo olufanele lokulebula kungenzeka ludinge izibalo eziningi zokugadwa kanye ne-emission, ngakho kungase kuthathe umzamo omkhulu ukusetha uhlelo olunjalo. Kuleli qophelo, abathengi abaningi kuzodingeka balandele lokhu ngokwabo.
iziphetho
1.Ukulima kwesimanje nakanjani kunomthelela ekuguqukeni kwesimo sezulu, kodwa eminye imikhiqizo inomthelela omkhulu kuneminye. Inyama yenkomo, iwundlu kanye noshizi kuvame ukubangela umonakalo omkhulu esimweni sezulu. Izitshalo zazo zonke izinhlobo zivame ukuba nomthelela omncane.
2. Lokho okudlayo kubaluleke kakhulu kunanoma yisiphi isikhwama osisebenzisayo ukuletha ekhaya usuka esitolo.
3. Ngisho namashifu amancane ekudleni kwakho nasekulawuleni imfucuza kunganciphisa isimo sakho sezulu.
4. Indlela elula yokunciphisa ukukhishwa okuhlobene nokudla ukuthenga okuncane. Thenga kuphela lokho okudingayo. Lokhu kuzosho ukuthi izinsiza ezisetshenziselwa ukukhiqiza le mikhiqizo zisetshenziswe ngendlela efanele.
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