Manya manyan tsana Amurka, Jamus da Belgium sito a hannun jari, isar da sauri!

Farkon gyare-gyare

A cikin 1885 Olmsted-tsara na New York State Reservation a Niagara ya zama wurin shakatawa na farko na ƙasar, kuma cikin sauri ya zama sanannen wuri ga masu yawon bude ido da masu shayarwa don kallon ƙawancin daji na Falls na Amurka da kuma mafi girma Horseshoe Falls a kan iyakar Kanada. Amma akwai matsala: Niagara Falls yana rasa tsawa. Haɓaka “tsaron makamai” da ke haɓaka wutar lantarki tsakanin ƙasashen biyu kogin yana nufin ƙarancin ruwa fiye da kowane lokaci yana gudana akan faɗuwar bangarorin biyu.

Bayan Kanada da Amurka sun rattaba hannu kan yarjejeniyar karkatar da kogin Niagara a cikin 1950, sun tattauna tsare-tsare da yawa-ciki har da mayar da Niagara zuwa "ruwa mai tsayi" wanda zai gudana a ranar Lahadi kawai - kafin su amince da karkatar da kasa da rabin kogin Niagara na cubic feet-biyu-biyu don kwararar ruwa a lokacin lokacin hutu na tsawon lokaci.

"Wannan yana nufin idan za ku je Niagara Falls a lokacin Kirsimeti, ko kuma kowane lokaci a cikin hunturu, abin da kuke gani shine kashi ɗaya cikin huɗu na ruwan da ke bi ta magudanar ruwa," in ji Macfarlane.National Geographic. "Sauran kwata uku suna zagayawa [fadu] a cikin ramukan karkatarwa." Elden Ring Melina Sex Doll

Yarjejeniyar ta 1950 ta kuma tsara wani shiri don rufe gagarumin tasirin makamashin ruwa akan kogin Niagara da shahararriyar faɗuwar sa. Injiniyoyi na Kanada sun karkatar da kogin a cikin ƙananan sassa, suna fashewa da sassaƙa gefen Falls na Horseshoe, suna raguwa da ɗaruruwan ƙafa don ƙirƙirar layin da ba a karye ba wanda ke lulluɓe da siriri, labulen ruwa iri ɗaya don ba da ra'ayi na girma. Wani “telecolorimeter” da aka gina ta al'ada ya taimaka wa injiniyoyi su tabbatar da faɗuwar a gefen Kanada ya kasance inuwar da ta dace ta shuɗi mai launin kore. Sake sassaƙa ɓangarorin Horsehoe Fall ya rage girman hazo, wanda ya kasance ƙaramar yawon buɗe ido.

Masu kiyayewa na Amurka sun fusata da shiga tsakani a fannin ilmin kasa, amma injiniyoyi sun nuna rashin amincewarsu ta hanyar nuna cewa Niagara Falls yana lalata ƙafafu da yawa a kowace shekara - wurin da yake yanzu yana da nisan mil takwas daga sama daga inda ruwa ya fara cinye Niagara Escarpment kimanin shekaru 12,000 da suka gabata.

"Amma idan kuna da ƙarancin ruwa da yawa da ke wucewa, faɗuwar ruwa ba zai iya rushewa da sauri ba," in ji Macfarlane. Wace hanya mafi kyau don adana Niagara Falls, injiniyoyin sun yi gardama, fiye da rage gudu a kan faɗuwar ruwa?