Guje wa Canjin Yanayi Mai Hadari (taron 2005)

A shekara ta 2005, wani taron kasa da kasa mai taken Guiding Dangerous Climate Change: A Scientific *Symposium on Stabilisation of Greenhouse Gases* ya bincika alaƙar da ke tsakanin iskar gas mai ɗorewa da dumama duniya da tasirin sa. Sunan taron ya samo asali ne daga Mataki na 2 na Yarjejeniyar Tsarin Majalisar Dinkin Duniya kan Canjin Yanayi  Taron ya bincika yiwuwar tasirin a matakai daban-daban na hayakin gas da kuma yadda za'a iya daidaita yanayin a matakin da ake so. Taron ya faru ne a karkashin shugabancin G8 na Burtaniya, tare da halartar masana kimiyya kusan 200 "mashahuran kasa da kasa" daga kasashe 30. Dennis Tirpak ne ya jagoranci kuma Cibiyar Hadley ta shirya ta Tsinkaya da Bincike a Exeter, daga 1 ga Fabrairu zuwa 3 ga Fabraira.

Taron ya kasance daya daga cikin tarurruka da yawa da suka kai ga Yarjejeniyar Paris ta 2015, inda al'ummomin duniya suka amince da iyakance dumamar yanayi zuwa 2 °C don samun damar 50-50 na kauce wa canjin yanayi mai haɗari.

## Manufofin

An kira taron ne don tattara sabbin bincike game da abin da zai zama dole don cimma burin Yarjejeniyar Tsarin Majalisar Dinkin Duniya ta 1992 kan Canjin Yanayi:

: don cimma, daidai da tanadin da ya dace na Yarjejeniyar, daidaitawar iskar gas a cikin yanayi a matakin da zai hana haɗarin tsangwama na mutum tare da tsarin yanayi.

An kuma yi niyyar karfafa ƙarin bincike a yankin. A cikin Rahoton Bincike na Uku na IPCC na 2001, an haɗa kimantawa na farko game da batun; duk da haka, batun ya sami ɗan tattaunawar ƙasa da ƙasa.

Musamman, taron ya bincika batutuwa uku:

* Ga matakai daban-daban na canjin yanayi menene mahimman tasirin, ga yankuna da bangarori daban-daban da kuma duniya gaba ɗaya?
* Mene ne irin waɗannan matakan Canjin yanayi zasu nuna dangane da maida hankali ga iskar gas da hanyoyin fitarwa da ake buƙata don cimma irin waɗannan matakan?
* Waɗanne zaɓuɓɓuka ne ke akwai don cimma daidaito na iskar gas a wurare daban-daban na daidaito a cikin yanayi, la'akari da farashi da rashin tabbas?

## Ƙarshen
Daga cikin ƙaddamarwar da aka cimma, mafi mahimmanci shine sabon kimantawa game da alaƙar da ke tsakanin yawan iskar gas a cikin yanayi da karuwar matakan zafin jiki na duniya. Wasu masu bincike sun yi jayayya cewa za a iya kauce wa mummunar Sakamakon dumamar yanayi na duniya idan matsakaicin yanayin zafi na duniya ya tashi da 2 ° C (3.6 ° F) sama da matakan masana'antu. Gabaɗaya an ɗauka cewa wannan zai faru idan yawan iskar gas ya tashi sama da 550 ppm carbon dioxide daidai da girma. Wannan mayar da hankali, alal misali, sanar da gwamnati a wasu ƙasashe, gami da Tarayyar Turai.

Taron ya kammala cewa, a matakin 550 ppm, mai yiwuwa ne cewa 2 ° C zai wuce, bisa ga tsinkayen samfuran yanayi na baya-bayan nan. Daidaitawar iskar gas a 450 ppm zai haifar da yiwuwar 50% na iyakancewar dumamar duniya zuwa 2 ° C, kuma zai zama dole don cimma daidaito a ƙasa da 400 ppm don ba da tabbaci mai girma na ba da wucewa 2 ° C ba.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

Taron ya kuma yi iƙirarin cewa, idan an jinkirta aikin rage hayaki da shekaru 20, yawan rage hayaki na iya buƙatar zama sau 3 zuwa 7 mafi girma don saduwa da wannan burin zafin jiki.

## Halin da ake ciki
A sakamakon sauya ra'ayi game da 'sauri' yanayin iska na iskar gas, wanda wannan taron ya ba da gudummawa, Gwamnatin Burtaniya ta canza manufa a cikin Dokar Canjin Yanayi daga 60% zuwa 80% nan da shekara ta 2050. 

## Dubi kuma

* Digiri 4 da Bayan Taron Yanayi na Duniya
* Ayyuka game da canjin yanayi
* Yanayin rage canjin yanayi
* Tasirin muhalli na jirgin sama
* Hypermobility (tafiye-tafiye) 
* Lissafin labaran canjin yanayi

## Ƙarin karantawa

* Littafin da ya danganta: Gujewa Canjin Yanayi mai haɗari, Editoci: Hans Joachim Schellnhuber, Wolfgang Cramer, Nebojsa Nakicenovic, Tom Wigley, da Gary Yohe, Cambridge University Press, Fabrairu 2006,  . PDF version a Wayback Machine (an adana 2007-09-26) 
** PDF versiona cikinWayback Machine  (an adana shi 2007-09-26) 

## Haɗin waje

* Avoiding Dangerous Climate Change - official conference websitea cikinLaburaren MajalisaTarihin yanar gizo  (an adana shi 2005-07-19) 
* Cibiyar Tyndall - Binciken dabarun kimiyya da halayyar mutum game da canjin yanayi 'mai haɗari'Binciken dabarun ra'ayoyin kimiyya da halayyar kan canjin yanayi 'mai haɗari'
* WWF-UK - 2°C Ya Fice! Shaida da Tasirin Canjin Yanayi mai haɗari a cikin Arctic
* Hukumar Nazarin Muhalli ta Netherlands - Taron Tarayyar Turai 2 ° C yanayin da aka yi niyya: tasirin fitarwa na duniya da na yankiGanawa da Tarayyar Turai 2 °C yanayin yanayi: tasirin fitarwa na duniya da na yanki
* Dr. James Hansen, Climate Scientist's web pagea cikinWayback Machine  (an adana shi 2004-12-04) 

; Labarai

* Afrilu 19, 2007, *Reuters*: Duniya tana buƙatar kashe iskar gas mai guba da kashi 80: rahotoBukatar duniya don kashe iskar gas mai guba ta hanyar 80 pct: rahoto
* Fabrairu 1, 2006, Euractive: Babban mai ba da shawara na kimiyya na Burtaniya: Tsayawa da maida hankali ga CO2 a ƙasa da 450ppm 'ba zai yiwu ba'Babban mai ba da shawara kan kimiyya na Burtaniya: Tsayawa da CO2 a ƙasa da 450ppm 'ba zai yiwu ba'
* Janairu 30, 2006, *BBC*: Stark gargadi game da canjin yanayiGargadi na Stark game da canjin yanayi
* Janairu 30, 2006, *BBC*: Rahoton yanayi: manyan batutuwa
* Janairu 29, 2006, *Washington Post*: Tattaunawa game da Canjin Yanayi zuwa Matsalar Canjin da ba za a iya gyarawa ba
* Janairu 1, 2006, Times a kan layi: Duniya tana da shekaru 20 kawai don dakatar da bala'in yanayi
* Fabrairu 3, 2005, Guardian Unlimited: Taron yanayi yana jin matakin haɗari

## Manazarta