Ka taƙaita labarin:  Hotunan Yosemite's iconic Half Dome ganiya sun bayyana da ban mamaki ma'auni na California ta tarihi fari. Hotunan, wanda ke nuna kololuwar a mako na uku na Maris a kowace shekara tsakanin 2011 da 2015, ya nuna yadda saurin dusar ƙanƙara ya ragu a kowace shekara. Snow yawanci yana da zurfi a yankin a ƙarshen Maris kuma, kamar yadda aka gani a cikin hoto na 2011, ya riga ya rufe kololuwa ciki har da Half Dome. Amma a wannan shekara, shekara ta huɗu a jere na fari a California, tsaunin mai tsawon kafa 9,000 ba shi da dusar ƙanƙara guda ɗaya. A farkon wannan watan, jami'ai sun ba da rahoton cewa dusar ƙanƙara ta Sierra Nevada, wanda ke ba da alamar samar da ruwa mai zuwa, kashi biyar ne kawai na zurfinta na yau da kullun - kuma kusan sama da ƙarancin rikodin da aka kafa a 1991. Rashin ruwa ya zo ne bayan hunturu na 2014 ya kasance mafi zafi a tarihin California. Gungura ƙasa don bidiyo. An ɓoye: Hoton da kyamarar yanar gizo ta Yosemite Conservancy ta ɗauka a ranar 19 ga Maris, 2011 ya nuna dutsen Yosemite na Half Dome wanda aka rufe da dusar ƙanƙara. Ragewa: A shekara mai zuwa, a watan Maris na shekarar 2012, an rufe saman dutsen a cikin dusar ƙanƙara mai zurfi. A sakamakon haka, masu kula da jihohi sun kada kuri'a a farkon wannan watan don sanya sabbin ka'idojin kiyaye ruwa, kamar haramcin shayarwa da dakatar da gidajen cin abinci da ke ba abokan ciniki ruwa sai dai idan sun nemi hakan. Manoma sun ce suna sa ran barin kusan kadada miliyan ba tare da shuka ba, kusan ninki biyu na shekarar da ta gabata, in ji jaridar New York Times. 'Yana kama da muna kan hanyarmu zuwa mafi munin dusar ƙanƙara a tarihi,' in ji masanan yanayi na jihar Michael Anderson ya gaya wa Times. 'Idan ba mu gama da wasu musamman kyau snow a nan a watan Maris, za mu kawo karshen sama da wani sabon mafi ƙasƙanci daraja a nan.' Amma akwai yiwuwar tsaunin Half Dome zai kasance ba tare da dusar ƙanƙara ba saboda babu manyan guguwa da aka yi hasashen su a sauran watan. A farkon wannan watan, Ma'aikatar Aikin Gona ta Amurka ta lura cewa kamar California, fari yana lalata Nevada da Utah da kuma sassan Arizona, New Mexico, Colorado, Washington da Oregon....
Hotunan da aka dauka a mako na uku na Maris a kowace shekara tsakanin 2011 da 2015 sun nuna bambanci a cikin dusar ƙanƙara. Ya zo ne yayin da California ke gwagwarmayar shekara ta huɗu a jere na fari bayan rikodin zafi mai zafi a shekarar 2014.