Ka taƙaita labarin:  Tare da hasashen'megadrought' da zai afkawa Amurka a cikin shekaru masu zuwa, jihohin da ke fama da ƙishirwa suna juyawa zuwa hanyoyin da suka fi dacewa don cika wuraren ajiyar su. Arizona tana jagorantar shirin samar da girgije na ruwan sama ta hanyar jiragen sama da ke tashi sama da Dutsen Rocky da kuma shuka sararin sama da iodide na azurfa. Suna fatan fasahar za ta ba su damar rage wasu daga cikin munanan tasirin canjin yanayi <unk> amma ba kowa ke da tabbaci ba. Tare da hasashen'megadrought' da zai afkawa Amurka a cikin shekaru masu zuwa, jihohin da ke fama da ƙishirwa suna juyawa zuwa hanyoyin da suka fi dacewa don cika wuraren ajiyar su. Arizona tana jagorantar shirin samar da gajimare na wucin gadi ta hanyar tashi sama da Dutsen Rocky, da kuma shuka sararin sama da iodide na azurfa. An fara ba da shawarar aiwatar da girgije a cikin 1940s a dakunan gwaje-gwaje na General Electric a Schenectady, New York. Shekaru ashirin bayan haka, Central Arizona Project da Salt River Project sun zuba jari a bincike don su sa ya zama gaskiya. 'Ba a cire shi daga tebur ba a matsayin kayan aiki mai yuwuwa yayin da muke aiki ta hanyar fari a yanzu da kuma nan gaba,' Nancy Selover, masanin yanayin yanayi na jihar Arizona ya gaya wa Becky Brisley a Cronkite News. Tun 2007, CAP ta sanya kusan dala miliyan 1 don binciken da ke faruwa a wasu jihohi don ƙara wadatar ruwa a cikin tsarin Kogin Colorado. Ruwa a cikin iska, har ma a yankuna masu bushe, za a iya canzawa zuwa lu'ulu'u na kankara ta amfani da jiragen sama don shuka yanayin da sunadarai kamar azurfa iodide ko busassun kankara. Idan kamar ruwan sama ba ya tsayawa, sai ka zargi 'yan Rasha. Ko ma 'yan Koriya ta Arewa. Shugabannin CIA sun ji tsoron cewa kasashe masu adawa suna kokarin yin amfani da yanayin duniya, wani taron da aka ji a watan Fabrairu. Wani babban malami ya ba da labarin yadda ya sami kiran waya mai ban mamaki yana tambaya ko ƙasashen waje na iya haifar da fari ko ambaliyar ruwa. Farfesa Alan Robock, daga Jami'ar Rutgers a New Jersey, ya ce: 'Masu ba da shawara da ke aiki ga CIA sun kira kuma sun ce muna son mu san ko akwai wanda yake sarrafa yanayin duniya, shin za mu san hakan? 'Hakika sun kuma tambaya - idan muka...
Shirin Arizona na tsakiya ya zuba dala miliyan daya don binciken girgije. Tsarin ya hada da girgije a kan Dutsen Rocky tare da iodide na azurfa. Wasu masana kimiyya suna damuwa game da azurfa da ke tattare a cikin koguna. Har ila yau, akwai rashin tabbas game da wanda ya kamata ya sami ƙarin ruwa.