Jerin wurare da ƙungiyoyi ta hanyar hayakin gas

Wannan labarin jerin wurare ne da ƙungiyoyi ta hanyar hayakin gas, watau hayakin gas daga kamfanoni, ayyuka, da ƙasashe a Duniya waɗanda ke haifar da Canjin yanayi. Gas din da suka dace galibi sune: carbon dioxide, methane, nitrous oxide da iskar gas mai guba  bromofluorocarbon, chlorofluorocarbon, hydrochlorofluoro carbon,  hydrofluorocarbon ,  nitrogen trifluoride,  perfluorocarbons da sulfur hexafluoride. 

Cirewa da kuma amfani da burbushin burbushin kwal, mai da iskar gas,  a matsayin tushen man fetur, shine mafi girman mai ba da gudummawa ga dumamar duniya. 

 Carbon dioxide 

 Kasashe 10 da aka fi sani da su 
A watan Yunin 2023, tare da tan miliyan 12,705 na CO2e da aka samar, China ita ce mafi girma; Amurka ta kasance ta biyu tare da 6,001, Indiya 3,394, EU (wanda shine kasashe 27) 3,383, Rasha 2,476, Japan 1,166, Brazil 1,057, Indonesia 1,002, Iran 893, da Kanada 736. 

 Yankin 1 + 3 hayaki, tarawa na shekarun 1988 - 2015, daga man fetur da iskar gas 
Wannan ɓangaren yana amfani da bayanai daga  rahoton lissafin yanayi  na Heede na Cibiyar Bayar da Bayani ta Carbon, da van Der Vlugt da Griffin na Shirin Bayyana Carbon .  Duk da yake bayanan hayaki "Direct operational" da kuma kai tsaye haifar daga kamfanonin da aka bincika CDP ta nuna su, buƙatun don bayanan da kamfanoni suka yi watsi da su da hayaki sakamakon amfani da samfuran da suka samo asali tare da kamfanoni an haɗa su a matsayin kimantawa ta masu bincike. Bayanan da masana kimiyya na CDP suka yi amfani da su sun hada da yawan hayaki kamar yadda aka bayyana ta hanyar GHG Protocol Corporate Standard (GHGPCS): Scope 1 da Scope 3 hayaki (ba tare da hada Scope 2) - waɗannan uku sune duk nau'ikan hayaki. 1 shine tushen fitarwa kai tsaye daga kamfanoni mallakar ko mallakar albarkatu, 3 shine tushen kai tsaye daga ayyukan samarwa; waɗannan GHGPCS sun raba su cikin nau'ikan: sama da ƙasa, da kuma rukunoni 15. Ana tunanin fitar da hayaki na 3 kusan 90% ne na jimlar daga kowane kamfani kuma sakamakon konewar kwal, da, ko, mai, da, gas yayin jujjuyawar waɗannan zuwa makamashi watau a matsayin man fetur; wanda aka rarraba shi azaman ruwa. Tebur masu dacewa da ke ƙasa suna da matsayi na masu fitar da iskar gas mai tsabtace masana'antu 20 daga 1988 zuwa 2015 daga rahoton Carbon Majors Database (CDP)  , a 10 Yuli 2017  dataset na GtCO2e

Teburin da ke ƙasa yana nuna jimlar hayaki (ƙididdiga) a matsayin kashi na duk hayaki. An samo bayanan samar da mai da iskar gas daga rahotanni na shekara-shekara daga shafukan yanar gizo na kamfanin da SEC (2016). Ga wasu kamfanonin mallakar jihar, an samo bayanai daga 'Oil & Gas Journal' (1986-2016) ko kuma an kiyasta su daga kididdigar ƙasa (EIA 2017, BP 2016, da OPEC 2016):
MatsayiKamfaninKasarKashi1Kamfanin Man Fetur na Saudi Arabiya (Aramco) Saudi Arabia4.8%2Gazprom OAO Rasha4.2%3Kamfanin Man Fetur na Iran2.3%4Kungiyar ExxonMobil Amurka2.1%5Petroleos Mexicanos (Pemex) 2.0%6Shell plc Ƙasar Ingila1.8%7BP PLC Ƙasar Ingila1.7%8Kamfanin Man Fetur na Kasa na kasar Sin (PetroChina) 1.6%9Kamfanin Chevron Amurka1.4%10Petroleos de Venezuela SA (PDVSA) 1.3%11Abu Dhabi National Oil Co Hadaddiyar Daular Larabawa1.2%12Kuwait Petroleum Corp Kuwait1.0%13Jimillar SA Faransa1.0%14Sonatrach SPA Aljeriya1.0%15ConocoPhillips Amurka1.0%16Man fetur na Brasileiro SA (Petrobras) 0.8%17Kamfanin Man Fetur na Najeriya0.7%18Petroliam Nasional Berhad (Petronas)  Malaysia0.7%19Rosneft OAO Rasha0.7%20Lukoil OAO Rasha0.7%SUM32.0%

 Manazarta