Da alama akwai yiwuwar Yarjejeniyar Paris ba za ta isa ta dakatar da dumamar yanayi ba. Anyi shi ne don kaucewa yanayin fari, yunwa da bala'o'i, amma bisa ga binciken da aka buga a cikin 'Canjin Yanayi' wanda masu bincike daga Jami'ar Washington suka gudanar, akwai yiwuwar kashi 90 cikin ɗari cewa a ƙarshen karni matsakaicin zafin duniyar nan zai karu da tsakanin digiri 2 zuwa 5 a ma'aunin Celsius.
Wannan ya wuce iyawar digiri biyu na tashin da yarjejeniyar Paris ta kafa. Saboda haka, muna iya yin magana game da makomar da ba mu san komai game da ita ba, wanda ke da matukar damuwa.
Iyakance yawan zafin jiki ya tashi zuwa digiri biyu yana da kyakkyawan fata. Dargan Frierson, marubucin marubucin binciken ya ce "Lalacewar yanayi, fari, yanayin zafi da hauhawar ruwan teku za su fi tsanani." »Sakamakon namu ya nuna cewa ya zama dole a kawo canji mai kyau idan har ana son cimma burin kara zafin jiki da digiri 1,5 kawai.".
Don yin wadannan hasashen, masu bincike sun kirkiro kwaikwaiyo na komputa kuma sun lura da yanayin duniya, misali la’akari da ikon tekuna na iya shan iskar carbon dioxide (CO2). Bugu da ari, amfani da bayanan da aka tara sama da shekaru 50 don ƙirƙirar al'amuran da suka danganci yawan kayan cikin gida (GDP), ma'aunin da ke kirga adadin CO2 da ake fitarwa don kowane dala da aka samar cikin ayyukan tattalin arziki.
Don haka, sun yi ƙoƙarin hango abin da zai faru idan ba a yi wani abu don dakatar da ɗumamar yanayi ba, ko kuma idan ƙasashe da gaske sun yi ƙoƙari don dakatar da ƙona burbushin mai.
Adrian Raftery, wanda shi ne marubucin farko a binciken, ya ce makasudin yarjejeniyar ta Paris na da gaskiya, amma da alama ba za su isa ba. Yawan mutanen a ƙarshen karnin zai kasance ko kuma zai wuce mutane miliyan 10, don haka, duk da cewa ci gaban ba zai zama sananne sosai ba tunda galibi zai faru ne a Afirka, Sai dai in ƙasashe sun yi ƙoƙari na gaske don rage hayaƙi, yanayin zai bambanta sosai da yadda yake a yau.
Kuna iya karanta karatun a nan.