Makumi emakore ekurwisa mhedzisiro yekudziya kwepasi

Planet Earth yakaonekwa kubva muchadenga

Planet Earth sekuziva kwedu nhasi inyika mune iyo vanhu kukanganisa kwavo nharaunda kwakakura kwazvo zvekuti isu takakwanisa kupaza iyo yakasarudzika muyero wemba yedu. Zvino, maererano neongororo yakaitwa neInternational Institute for Applied Analysis Systems (IIASA) isu tine gumi chete rekurwisa mhedzisiro yekudziya kwepasi, nekudaro ichidzivirira tembiricha yepakati kubva kumusoro pamusoro pe2ºC.

Kana isu tikasaita chero chinhu, mhedzisiro yacho inogona kutarisirwa.

Zvinoenderana nekudzidza, nemafuta mazana maviri nemakumi maviri anofanirwa kungopa zvikamu makumi maviri nezvishanu kubva muzana zvemagetsi izvo zvinoda indasitiri. Nhasi hupfumi hwenyika hunoenderana ne95% yesimba iri. Izvi zvinoreva kuti kana tikasatanga kushandisa nekutora mukana wesimba rinowedzerwazve, iro rakachenesa zvakanyanya, tinozopedzisira tagara mupasi rinodziya zvakanyanya. Kunyanya kutaura, nezve 3,5ºC kudziya.

Michael Obersteine, mumwe-munyori wechidzidzo, akadaro Matanho anofanirwa kutorwa kudzikisira mweya wevanhu wakakonzera kabhoni dhayokisaidhi kuita zero na2040, zvikasadaro hatingakwanise kuchengeta tembiricha pazasi pe2ºC.

Kusvibiswa kwemhepo

IIASA inokurudzira kuti munhu wese azive kukosha kwayo chengetedza pasi nezvakatipoteredza kuitira kuti panosvika kupera kwezana rino ramakore, kuburitsa kabhoni kunogona kudonha kusvika ku42 muzana, izvo zvingangobatsira kudzikisira mhedzisiro yekudziya kwepasi. Zvakadaro, akawedzera kuti mamiriro acho akanyanya zvekuti kunyangwe zviito zvikatorwa kuchengetedza nharaunda, tembiricha na 2100 ichawedzera ne2,5ºC.

Pamwe ndiyo nguva yekufungisisa pane zvatange tichiita kusvika parizvino, uye nezvatichine nguva yekuita.

Unogona kuverenga chidzidzo chakazara pano (Iri muChirungu).


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