Sakamakon canjin yanayi yana zama bala'i ga dubban nau'ikan dabbobi da tsirrai a duk faɗin duniya. A wannan halin, zamu koma arewa maso gabashin Ostiraliya don ganin Babban shingen ruwa wanda yake wahala wani babban farin sabulu na shekara biyu a jere.
Idan wannan ya ci gaba, menene zai faru da maɓuɓɓugan murjani?
Babban Gaban Katanga
Great Barrier Reef yanki ne mai tsayi kusan kilomita 2.300 wanda UNESCO ta ayyana shi a matsayin Gidan Tarihin Duniya. Bullowar na faruwa ne sakamakon ƙaruwar yanayin zafi a cikin ruwan teku saboda canjin yanayi.
Har yanzu dai lokaci bai yi ba da za a san ko tasirinsa zai yi daidai da na bara na shekarar da ta gabata, wanda ake ganin shi ne mafi munin tarihi a cikin Babban shingen ruwa, inda irin wannan lamarin ya faru a 1998 da 2002.
Ba abin damuwa bane idan wannan taron ya kasance mafi sharri ko muni fiye da wanda ya gabata, kawai yana da mahimmanci ne cewa yanayin duniya yana canzawa kuma yana kawo mahimman abubuwan da ke faruwa akai-akai zuwa ga Babban shingen Reef.
Mutuwar murjani
Fatawar canjin yanayi da ta gabata ta share 22% na murjani a cikin dukkanin tsarin halittu mai tsawon kilomita 2.300. Murjani yana da alaƙa ta musamman ta alaƙa tare da ƙananan algae da ake kira zooxanthallae, wanda ke ba wa masu masaukinsu iskar oxygen da wani ɓangare na ƙwayoyin halittar da suke samarwa ta hanyar hotuna.
Tare da canjin yanayi da karuwar yanayin zafi, wadannan suna fuskantar matsin lamba na muhalli, saboda haka da yawa murjani suna korar zooxanthallae su a masse, kuma an bar polyps na murjani ba tare da yin launin ba. Tun da ba su da launin launin fata, sun bayyana kusan a bayyane akan kwarangwal na dabbar.
Kowace shekara dubun murjani suna mutuwa saboda canjin yanayi kuma a ƙimar da muke ci gaba da gurɓatawa, yanayin yanayin teku da tekuna ba zai daina tashi ba.