Abantu

Iki cyiciro gikora iperereza ku gipimo cy’umuntu cyo gukoresha inyamaswa - uburyo twe nkabantu ku giti cyabo hamwe na societe dutsindishiriza, dukomeza, cyangwa turwanya gahunda yubugome. Kuva ku muco gakondo no gushingira ku bukungu kugeza ku buzima rusange n’imyizerere yo mu mwuka, umubano wacu n’inyamaswa ugaragaza indangagaciro dufite n'inzego z'imbaraga dutuyemo. Igice cya "Abantu" kirasesengura ayo masano, kigaragaza uburyo ubuzima bwacu bwite bufitanye isano nubuzima twiganje.
Turasuzuma uburyo indyo iremereye inyama, ubuhinzi bwinganda, hamwe nuruhererekane rwogutanga isoko byangiza imirire yabantu, ubuzima bwo mumutwe, nubukungu bwaho. Ihungabana ry’ubuzima rusange, kwihaza mu biribwa, no gusenyuka kw’ibidukikije ntabwo ari ibintu byihariye - ni ibimenyetso bya sisitemu idashoboka ishyira imbere inyungu kuruta abantu n’isi. Muri icyo gihe, iki cyiciro cyerekana ibyiringiro no guhinduka: imiryango y’ibikomoka ku bimera, abakinnyi, abaturage, hamwe n’abarwanashyaka bongeye gutekereza ku mibanire y’abantu n’inyamaswa no kubaka uburyo bwo kubaho, bwuje impuhwe.
Muguhangana ningaruka zumuco, umuco, nibikorwa bifatika byo gukoresha inyamaswa, natwe ubwacu duhura nabyo. Ni ubuhe bwoko dushaka kuba muri bo? Nigute guhitamo kwacu kwerekana cyangwa guhemukira indangagaciro zacu? Inzira igana ku butabera - ku nyamaswa no ku bantu - ni imwe. Binyuze mu kubimenya, kubabarana, no gukora, turashobora gutangira gusana gutandukana bitera imibabaro myinshi, kandi tugana ahazaza heza kandi harambye.

Mu myaka yashize, igitekerezo cy’ubuhinzi bw’akagari, kizwi kandi ku nyama zatewe na laboratoire, cyitabiriwe cyane nkigisubizo cy’ibibazo by’ibiribwa byugarije isi. Ubu buryo bushya burimo gukura inyama zinyamanswa muri laboratoire, bivanaho gukenera ubworozi gakondo. Nubwo inyungu z’ibidukikije n’imyitwarire y’ubuhinzi bw’utugari zemewe cyane, habaye ubushakashatsi buke ku ngaruka zishobora guterwa no kurya inyama zikuze muri laboratoire. Nkuko iryo koranabuhanga rikomeje gutera imbere no kugira imbaraga mu bucuruzi, ni ngombwa gusuzuma no gusobanukirwa ingaruka zishobora guteza ubuzima ku bantu no ku nyamaswa. Muri iki kiganiro, tuzareba uko ubuhinzi bwifashe muri iki gihe tunaganira ku ngaruka zishobora kugira ku buzima zishobora kugira ku baguzi no kuri gahunda nini y'ibiribwa. Mugihe icyifuzo cyo kongera umusaruro urambye kandi wimyitwarire myiza, ni ngombwa gusuzuma neza ibice byose byubuhinzi bwi selire kugirango…

Mu gihe abatuye isi bakomeje kwiyongera no gukenera ibiribwa byiyongera, inganda z’ubuhinzi zirahura n’igitutu cyinshi kugira ngo ibyo bikenerwa ari nako bigabanya ingaruka z’ibidukikije. Kimwe mu bihangayikishije ni umusaruro w’inyama, wagize uruhare runini mu myuka ihumanya ikirere, gutema amashyamba, no kwanduza amazi. Nyamara, igisubizo cyizewe gikurura abantu mubuhinzi nubuhinzi bushya. Ubu buryo bwo guhinga, bushingiye ku mahame yo kuramba no kuringaniza ibidukikije, byibanda ku kubaka ubutaka bwiza no kugarura urusobe rw’ibinyabuzima. Mugushira imbere ubuzima bwubutaka, ubuhinzi bushya bufite ubushobozi bwo kutazamura ubwiza bwibiribwa byakozwe gusa, ahubwo binagabanya ingaruka mbi z’ibidukikije ku musaruro w’inyama. Muri iki kiganiro, tuzasuzuma icyerekezo cy’ubuhinzi bushya n’ubushobozi bwacyo bwo gukemura ibibazo by’ibidukikije biterwa n’umusaruro w’inyama. Tuzacengera siyanse inyuma yubuhanga bwo guhinga, inyungu zayo,…

Ubuhinzi bwuruganda, uburyo bwateye imbere cyane kandi bukomeye bwo korora amatungo kubyara umusaruro, byabaye ikibazo cyibidukikije. Inzira yinyamanswa itanga ibiryo ntabwo itera gusa ibibazo byimyitwarire yimibereho yinyamaswa ahubwo inagira ingaruka mbi kwisi. Hano hari ibintu 11 by'ingenzi byerekeranye n'imirima y'uruganda n'ingaruka zabyo ku bidukikije: 1- Imirima minini y’ibyuka bihumanya ikirere ni kimwe mu bigira uruhare runini mu kwangiza imyuka ihumanya ikirere ku isi, ikarekura metani na oxyde ya nitrous mu kirere. Iyi myuka irakomeye cyane kuruta dioxyde de carbone mu ruhare rwayo mu bushyuhe bw’isi, metani ikaba ifite inshuro zigera kuri 28 mu gufata ubushyuhe mu gihe cy’imyaka 100, na okiside ya nitrous ikubye inshuro 298. Inkomoko yambere y’ibyuka bya metani mu buhinzi bw’uruganda ikomoka ku nyamaswa z’amatungo, nk'inka, intama, n'ihene, zitanga metani nyinshi mu gihe cyo gusya…

Ubworozi bw'uruganda, uburyo bwateye imbere mu korora amatungo kugira ngo butange umusaruro, bwabaye imbarutso yo gutanga ibiribwa ku isi. Nyamara, munsi yuru ruganda rukora neza kandi rwunguka hari ikiguzi cyihishe kandi cyica: guhumanya ikirere. Imyuka iva mu mirima y’uruganda, harimo amoniya, metani, ibintu byangiza, hamwe n’indi myuka yangiza, bitera ingaruka zikomeye ku buzima ku baturage ndetse n’abaturage benshi. Ubu buryo bwo kwangiza ibidukikije akenshi ntibumenyekana, ariko ingaruka zubuzima ziragera kure, biganisha ku ndwara zubuhumekero, ibibazo byumutima nimiyoboro, nibindi bibazo byubuzima budakira. Igipimo cy’umwanda uhumanya n’imirima y’uruganda rw’uruganda rufite uruhare runini mu guhumanya ikirere. Ibi bikoresho bibamo inyamaswa ibihumbi n’ibihumbi zifungiwe, aho imyanda iba yegeranye ku bwinshi. Mugihe inyamaswa zisohora imyanda, imiti na gaze bisohoka mu kirere byinjizwa n’inyamaswa ndetse n’ibidukikije. Ubwinshi bwa…

Ubworozi bw'uruganda, uburyo bwo guhinga inyamaswa cyane, bumaze igihe kinini bujyanye n’ibibazo byinshi by’ibidukikije n’imyitwarire, ariko imwe mu ngaruka zangiza kandi akenshi zirengagizwa ni umwanda utanga mu kirere. Ibikorwa by’inganda bigenda byiyongera, aho inyamaswa zibikwa ahantu habi, hadafite isuku, zitanga umwanda mwinshi uhumanya ikirere ugira uruhare mu kwangiza ibidukikije, ibibazo by’ubuzima rusange n’imihindagurikire y’ikirere. Iyi ngingo iragaragaza uburyo ubuhinzi bw’uruganda bufite uruhare runini mu guhumanya ikirere n’ingaruka zikomeye zigira ku buzima bwacu, ku bidukikije, no ku mibereho y’inyamaswa zirimo. Imyanda ihumanya y’uruganda rw’uruganda, cyangwa ibikorwa byo kugaburira amatungo (CAFOs), ibamo inyamaswa ibihumbi n’ibihumbi zifungiwe aho zitanga imyanda ku bwinshi. Ibi bikoresho nisoko ikomeye yanduza ikirere, irekura imyuka itandukanye yangiza nibintu byangiza ikirere. Ibyuka bihumanya cyane birimo: Amoniya (NH3):…

Ubworozi bw'uruganda, buzwi kandi nk'ubuhinzi mu nganda, ni ubuhinzi bugezweho bukubiyemo umusaruro mwinshi w'amatungo, inkoko, n'amafi ahantu hafunzwe. Ubu buryo bwo guhinga bwarushijeho kwiyongera mu myaka mike ishize ishize kubera ubushobozi bwabwo bwo gukora ibikomoka ku nyamaswa nyinshi ku giciro gito. Nyamara, iyi mikorere ije ku kiguzi kinini haba ku mibereho y’inyamaswa ndetse n’ibidukikije. Ingaruka zo guhinga uruganda ku nyamaswa no ku isi ni ikibazo kitoroshye kandi gifite impande nyinshi cyakuruye impaka n’impaka mu myaka yashize. Muri iki kiganiro, tuzareba uburyo butandukanye ubuhinzi bw’uruganda bwagize ku nyamaswa ndetse no ku bidukikije, n'ingaruka bigira ku buzima bwacu no kuramba kwisi. Kuva ku gufata nabi ubugome n'ubumuntu kugeza ku ngaruka mbi ku butaka, amazi, n'umwuka, ni ngombwa kuri…