Ingabe engikudlayo kunomthelela ekushintsheni kwesimo sezulu?
Yebo. Isimiso sokudla somhlaba wonke sibangela cishe ingxenye yesine yamagesi abamba ukushisa afudumeza iplanethi akhiqizwa abantu unyaka ngamunye. Lokhu kuhlanganisa ukutshala nokuvuna zonke izitshalo, izilwane kanye nemikhiqizo yezilwane - inyama yenkomo, inkukhu, inhlanzi, ubisi, udali, iklabishi, ummbila nokunye. Kanye nokucubungula, ukupakisha kanye nokuthumela ukudla ezimakethe emhlabeni jikelele. Uma udla ukudla, uyingxenye yalesi simiso.
Kanjani ngempela ukudla okuhlobene nokufudumala kwembulunga yonke?
Kukhona ukuxhumana okuningi. Nazi ezine zazo:
1. Lapho amahlathi egawulwa ukuze kuvuleleke amapulazi nemfuyo (lokhu kwenzeka nsuku zonke kwezinye izingxenye zomhlaba), izitolo ezinkulu zekhabhoni zidedelwa emkhathini. Ifudumeza iplanethi.
2. Lapho izinkomo, izimvu nezimbuzi zigaya ukudla kwazo, zikhiqiza i-methane. Ngenye igesi enamandla ebamba ukushisa enomthelela ekushintsheni kwesimo sezulu.
3. Amasimu omquba nezikhukhula asetshenziselwa ukutshala irayisi nezinye izitshalo nawo ayimithombo emikhulu ye-methane.
4. Amafutha ezinsalela asetshenziselwa ukushayela imishini yezolimo, ukukhiqiza umanyolo futhi ulethe ukudla emhlabeni wonke, okushiswayo nokudala ukukhishwa kwegesi emkhathini.
Yimiphi imikhiqizo enomthelela omkhulu?
Inyama kanye nemikhiqizo yobisi, ikakhulukazi evela ezinkomeni, inomthelela omkhulu. Imfuyo yenza cishe u-14,5% wamagesi abamba ukushisa emhlabeni minyaka yonke. Lokhu kucishe kufane nakuzo zonke izimoto, amaloli, izindiza nemikhumbi kuhlangene.
Sekukonke, inyama yenkomo newundlu inomthelela omningi wesimo sezulu ngegremu ngalinye lephrotheni, kuyilapho ukudla okusekelwe ezitshalweni kunomthelela omncane kakhulu. Ingulube nenkukhu kukhona endaweni ethile phakathi. Ucwaningo olwanyatheliswa ngonyaka odlule ephephabhukwini iSayensi lwathola isilinganiso sokukhishwa kwegesi ebamba ukushisa (ngamakhilogremu e-CO2) ngamagremu angama-50 amaprotheni:
Inyama Yenkomo 17,7 IWundlu 9,9 Igobolondo elifuyiwe 9,1 Ushizi 5,4 Ingulube 3,8 Inhlanzi efuyiwe 3,0 Inkukhu efuyiwe 2,9 Amaqanda 2,1 Ubisi 1,6 Tofu 1,0 Ubhontshisi 0,4 Amantongomane 0,1, XNUMX okukodwa
Lezi izinombolo ezimaphakathi. Inyama yenkomo ekhuliswe e-United States ngokuvamile ikhiqiza umoya omncane kunenyama yenkomo ekhuliswe e-Brazil- noma yase-Argentina. Abanye oshizi bangase babe nomthelela omkhulu wegesi ebamba ukushisa kune-chop yewundlu. Futhi abanye ochwepheshe bakholelwa ukuthi lezi zibalo zingase ziwubuke kancane umthelela wokugawulwa kwamahlathi okuhlobene nokulima nokufuya.
Kodwa ucwaningo oluningi luvumelana ngento eyodwa: ukudla okusekelwe ezitshalweni kuvame ukuba nomthelela omncane kunenyama, futhi inyama yenkomo newundlu yikona okuyingozi kakhulu emoyeni.
Ingabe ikhona indlela elula yokukhetha ukudla okunganciphisa isimo sami sezulu?
Ukudla inyama encane ebomvu kanye nobisi kuvame ukuba nomthelela omkhulu kubantu abaningi emazweni acebile. Ungamane udle okuncane kokudla okunesimo sezulu esikhulu kunazo zonke, njengenyama yenkomo, iwundlu noshizi. Ukudla okusekelwe ezitshalweni okunjengobhontshisi, ubhontshisi, okusanhlamvu, nesoya ngokuvamile kuyizinketho ezivumelana nesimo sezulu kunazo zonke.
Ukushintsha indlela engidla ngayo kuzowusiza kanjani umhlaba?
Ucwaningo oluningi luye lwabonisa ukuthi abantu abadla ukudla okusekelwe enyameni njengamanje, okuhlanganisa iningi labantu base-United States naseYurophu, banganciphisa ukudla kwabo ngengxenye yesithathu noma ngaphezulu ngokushintshela ekudleni kwemifino. Ukusika ubisi kuzonciphisa lokhu kukhishwa ngisho nangokwengeziwe. Uma ungakwazi ukushintsha kakhulu ukudla kwakho. Yenza kancane kancane. Ukumane udle inyama encane kanye nobisi kanye nezitshalo eziningi kakade kunganciphisa ukungcola.
Khumbula ukuthi ukusetshenziswa kokudla ngokuvamile kuyingxenyana encane yengqikithi ye-carbon footprint yomuntu, nokuthi ushayela kanjani, undiza futhi uwasebenzisa kanjani amandla ekhaya nakho kufanele kucatshangelwe. Kodwa izinguquko zokudla ngokuvamile zingenye yezindlela ezisheshayo zokunciphisa umthelela wakho emhlabeni.
Kodwa ngingedwa, ngingathonya kanjani okuthile?
Yiqiniso lokhu. Umuntu oyedwa angenza okuncane ekusizeni inkinga yesimo sezulu emhlabeni wonke. Lokhu kuyinkinga enkulu ngempela edinga izinyathelo ezinkulu kanye nezinguquko zenqubomgomo ukuze kubhekwane nazo. Futhi ukudla akukona ngisho okunomthelela omkhulu ekushiseni kwembulunga yonke - okuningi kwakho kubangelwa ukushiswa kwezinto ezibaswayo zikagesi, ezokuthutha, nezimboni. Ngakolunye uhlangothi, uma abantu abaningi bebonke benza izinguquko ekudleni kwabo kwansuku zonke, kuhle lokho.
Ososayensi baxwayisa ngokuthi kumele sinciphise umthelela wezolimo esimweni sezulu eminyakeni ezayo uma sifuna ukulawula ukufudumala komhlaba, ikakhulukazi njengoba inani labantu emhlabeni liqhubeka nokukhula. Ukuze lokhu kwenzeke, abalimi kuyodingeka bathole izindlela zokunciphisa intuthu ekhishwayo futhi baphumelele ngokwengeziwe, bakhulise ukudla okwengeziwe endaweni encane ukuze banciphise ukugawulwa kwamahlathi. Kodwa ongoti baphinde bathi kungenza umehluko omkhulu uma abantu abadla inyama kakhulu emhlabeni benciphisa ukudla ngisho nangesilinganiso esisesilinganisweni, kusize ukukhulula umhlaba ukuze wondle wonke umuntu.
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