A lokacin 2016 tarin carbon dioxide ko CO2 a cikin sararin samaniya ya karya sabon tarihin. Ya kasance irin wannan Duniya ba ta san irin wannan yanayin ba tsakanin shekaru miliyan 3 da 5 da suka gabata. A wancan lokacin, matsakaita yanayin duniya ya kasance tsakanin 2 zuwa 3ºC mafi girma kuma matakin teku ya fi mita 10 zuwa 20 sama da yadda yake a yau.
Menene dalilin wannan ƙaruwa a matakin CO2? Zamu gaya muku.
Tun juyin juya halin Masana'antu (1750), ɗan adam ya sami canje-canje da yawa waɗanda suka ba shi damar haɓakawa da rayuwa mai daɗi. A yin haka, ta fara amfani da ƙasar sosai, da sare dazuzzuka da kuma amfani da makamashin mai don ƙoshin makamashi. Duk shi, Kodayake da farko mun yi amannar cewa ba zai haifar da wani mummunan tasiri ba a duniya, da sannu sannu muna gane cewa mun yi kuskure.
A cewar Finland Petteri Taalas, Sakatare-janar na Kungiyar Kula da Yanayi ta Duniya (WMO), “idan ba mu hanzarta rage hayaki mai gurbata muhalli ba, galibi CO2, za mu fuskanci mummunan haɗari a cikin zafin jiki a cikin ragowar ƙarni, da kyau sama da maƙasudin da aka saita a Yarjejeniyar Paris kan sauyin yanayi.
Hoton - WMO.int
Kuma wannan shine, matakan ba sa yi sai ƙaruwa. Idan a cikin 2015 yawan zafin carbon dioxide ya kasance kashi 400,00 a cikin miliyan (ppm), a shekarar 2016 ya kai 403,3ppm, wanda ke wakiltar 145% na abin da ya kasance a zamanin kafin masana'antu (kafin 1750).
Don gano yadda yanayin CO2 a cikin yanayi ya banbanta, masu binciken suna ɗaukar samfuran tsofaffin kankara kuma suna nazarin su. Don haka, sun sami damar gano cewa, sai dai idan an ɗauki tsauraran matakai don hana shi, duniyar da muka sani za ta sha bamban da yadda al'ummomi masu zuwa za su sani.
Don ƙarin bayani, zaku iya danna wannan haɗin.