icupa ry'ikirahure

Ibicuruzwa byinshi byikirahure byavumbuwe mu turere tw'Uburengerazuba bw'Ubushinwa bwa kera, guhera mu myaka igera ku 2000, n'ibicuruzwa bishaje by'ikirahure ku isi bifite imyaka 4000. Nk'uko bya kera bya kera, icupa ry'ikirahuri ni ibihangano byabitswe ku isi, kandi ntibitunganya byoroshye. Abahanga bavuga ko ikirahuri ari umusenyi wumucanga, kandi igihe cyose umusenyi uri ku isi, ikirahuri kiri ku isi.
Ntakibazo gishobora gukonjesha icupa ryikirahure, ntibisobanura ko icupa ryikirahure ridatsindwa muri kamere. Nubwo bidashobora kurimburwa shimi, birashobora "kurimbuka". Umuyaga n'amazi ya kamere ni nemesise nini.
Muri Fort Bragg, Californiya, Amerika, hari umucanga w'amabara. Iyo ugenda, urashobora kubona ko igizwe numupira utabarika wamabara. Izi pellet ntabwo ari urutare muri kamere, ariko amacupa yikirahure abantu bajugunya. Mu myaka ya za 1950, yakoreshejwe nk'igihingwa cyo kujugunya imyanda ku macupa y'ibirahuri byajugunywe, hanyuma igihingwa cyajugunyweho ibirahuri gisigaye, nyuma y'imyaka 60, nyuma y'imyaka 60, nyuma y'imyaka 60, bazengurutse inyanja ya pasifika yoroshye kandi.

Abahanga bavuga ko mu kindi myaka 100 cyangwa irenga, ibirahuri by'amabara umucanga birashira. Kubera ko amazi yo mu nyanja akaba umuyaga wo mu nyanja asiga hejuru yikirahure, mugihe, ikirahure cyakuwe mu bice, hanyuma kizanwa mu nyanja n'amazi yo mu nyanja, hanyuma urohama munsi yinyanja.
Inyanja itangaje itukura gusa, ahubwo iganisha ku gutekereza ku buryo bwo gusubiramo ibirahuri.
Mu rwego rwo gukumira imyanda yikirahure kuva kwanduza ibidukikije, muri rusange dufata uburyo bwo gutunganya. Kimwe na recycled icyuma, ikirahure cya recycled gisubizwa mu itanura kugirango bishonge. Kubera ko ikirahure ari imvange kandi ntakintu gitangaje gitangaje, itanura ryashyizwe ku rugamba rutandukanye, kandi buri gice kizashonga ikirahure cyibihuha kandi ubitandukanye. Mu nzira, umwanda udashaka urashobora kandi gukurwaho wongeyeho izindi miti.
Gutunganya ibicuruzwa mu gihugu cyanjye byatangiye bitinze, kandi igipimo cyo gukoresha kiri hafi 13%, gisigaye inyuma y'ibihugu byateye imbere mu Burayi ndetse na Amerika. Inganda zireba mu bihugu byavuzwe haruguru zakuze, kandi ikoranabuhanga rishingiye ku buryo bwo gutunganya no gukoresha ibipimo ngenderwaho no kwiga mu gihugu cyanjye.