Sitasiyo ya mbere y’ikirere ikoresha ubwenge muri Amerika y'Epfo yashyizwe mu bikorwa ku mugaragaro mu misozi ya Andes muri Peru. Iyi sitasiyo igezweho y’ikirere yubatswe ku bufatanye n’ibihugu byinshi byo muri Amerika y'Epfo, hagamijwe kunoza ubushobozi bwo gukora ubushakashatsi ku mihindagurikire y’ikirere mu karere, no kongera imbaraga mu ibiza ...
Mu myaka ya vuba aha, icyifuzo cy’abakoresha ibikoresho bipima gazi ku isi cyariyongereye cyane. Bitewe n’ubumenyi bw’ibidukikije, amahame akomeye agenga ibidukikije, n’iterambere mu ikoranabuhanga, ibihugu bitandukanye birimo kwishingikiriza ku bikoresho bipima gazi mu nzego nyinshi. Uturere tw’ingenzi dufite ...
Mu myaka ya vuba aha, icyifuzo cy'ibisubizo bigezweho byo kugenzura amazi cyariyongereye cyane ku isi yose. Ibihugu by'ingenzi birimo gushora imari mu ikoranabuhanga kugira ngo birebe ko amazi ari meza mu bikorwa bitandukanye, birimo ubuhinzi, ubworozi bw'amafi, inganda, n'amazi yo mu migi. Ibi bikurikira...