Umqondisi owawina i-Oscar, uJames Cameron, osanda kudla inyama ngenxa yezizathu zokuziphatha, ugxeke abalondolozi bemvelo abaqhubeka nokudla inyama.
Kuvidiyo ye-Facebook eyathunyelwa ngo-Okthoba 2012, uCameron unxusa izazi zemvelo ezidla inyama ukuthi zishintshele ekudleni okusekelwe ezitshalweni uma zizimisele ngokulondoloza iplanethi.
“Awukwazi ukuba wungoti kwezemvelo, awukwazi ukuvikela ulwandle ngaphandle kokulandela indlela. Futhi indlela eya esikhathini esizayo - emhlabeni wezingane zethu - ayikwazi ukudlula ngaphandle kokushintshela ekudleni okusekelwe ezitshalweni. Echaza ukuthi kungani edle i-vegan, uCameron, XNUMX, wakhomba umonakalo odalwe ukufuya imfuyo ukuze idle.
“Asikho isidingo sokudla izilwane, ukukhetha kwethu kuphela,” kusho uJames. Kuba ukukhetha okuhle okunomthelela omkhulu emhlabeni, kumoshe izinsiza futhi kucekele phansi i-biosphere.”
Ngo-2006, iNhlangano Yezokudla Nezolimo yeNhlangano Yezizwe Ezihlangene yashicilela umbiko othi u-18% wamagesi abamba ukushisa abangelwa abantu avela ekufuyweni kwezilwane. Eqinisweni, lesi sibalo sisondele ku-51%, ngokombiko wango-2009 oshicilelwe nguRobert Goodland kanye noJeff Anhang woMnyango Wezemvelo Nokuthuthukiswa Komphakathi we-IFC.
Billionaire Bill Gates usanda kubala ukuthi imfuyo iyona ebangela ukukhishwa kwesisi esingcolisa umoya ngo-51%. “(Ukushintshela ekudleni kwemifino) kubalulekile uma kubhekwa umthelela wemvelo wemboni yenyama nobisi, njengoba imfuyo ikhiqiza cishe u-51% wamagesi abamba ukushisa emhlabeni,” usho kanje.
Ezinye izazi zemvelo ezaziwayo ziyakusekela ukudla imifino, besho umonakalo obangelwa ukufuywa kwezilwane. URajendra Pachauri, usihlalo we-Intergovernmental Commission on Climate Change, muva nje uthe noma ubani angasiza ekunciphiseni ukukhishwa kwamagesi abamba ukushisa ngokunciphisa ukusetshenziswa kwenyama.
Ngesikhathi esifanayo, uNathan Pelletier, isazi sezomnotho wezemvelo eDalhousie University, eHalifax, eNova Scotia, uthi izinkomo ezifuyelwa ukudla ziyinkinga enkulu: yizona ezikhuliswe emapulazini emboni.
UPelletiere uthi izinkomo ezifunzwa utshani zingcono kunezinkomo ezifuywe emapulazini, ezimpontshelwa amahomoni nama-antibiotics futhi ziphila ngaphansi kwezimo ezingahlanzekile ngaphambi kokuba zihlatshwe.
“Uma ukukhathazeka kwakho okuyinhloko kuwukunciphisa ukungcola, akufanele udle inyama yenkomo,” kusho uPelletier, ephawula ukuthi ku-0,5 kg ngayinye yezinkomo zenyama ikhiqiza u-5,5-13,5 kg we-carbon dioxide.
“Ukufuya ngokwejwayelekile kufana nezimayini. Ayizinzile, sithatha ngaphandle kokunikeza lutho ngokubuyisela. Kodwa uma uphakela izinkomo utshani, i-equation iyashintsha. Uzonikela ngaphezu kwalokho okuthathayo.”
Nokho, abanye ochwepheshe bayawuphikisa umbono wokuthi izinkomo ezidla utshani aziwulimazi kangako imvelo kunezinkomo zasefekthri.
UDkt. Jude Capper, umsizi kaprofesa wesayensi yobisi eWashington State University, uthi izinkomo ezifunzwa utshani ziyingozi emvelweni njengalezo ezikhuliswe emapulazini ezimboni.
UCapper uthi: “Izilwane ezifunzwa utshani kufanele zigcagcaze elangeni, zigxumagxume ngenxa yenjabulo nokuzijabulisa. "Sithole emhlabeni, amandla namanzi, kanye ne-carbon footprint, ukuthi izinkomo ezifunzwa utshani zimbi kakhulu kunezinkomo ezifunzwa ummbila."
Kodwa-ke, bonke ochwepheshe bemifino bayavuma ukuthi ukufuya kusongela iplanethi, futhi ukudla okusekelwe ezitshalweni kuhambisana kakhulu nemvelo kunokwenyama. UMark Reisner, owayeyintatheli yezisebenzi zoMkhandlu Wokongiwa Kwemithombo Yemvelo wakufingqa ngokucace kakhulu, ebhala, “ECalifornia, umthengi omkhulu wamanzi akuyona iLos Angeles. Akuzona izimboni zikawoyela, zamakhemikhali noma zokuzivikela. Hhayi izivini noma imibhede katamatisi. Amadlelo aniselwayo lawa. Inkinga yamanzi aseNtshonalanga - kanye nezinkinga eziningi zemvelo - zingafingqwa ngegama elilodwa: imfuyo.