Yn Carbon Foopint ain — Yn Slane Ad

Yn cretooraght, er ny raa dy kiarail

T'ou dy beigh cur magh cooidyn coardail goit reeish as queig go jeih keayrtyn ny share na t'eh cooilleeney.

Ta Conaant Paris dy vod ny smooeeaght jeh buidjey persoonagh ve myrchiooal 2 tonnes of CO₂e per year — myr 5.48 kg sa laa. She shen yn coimeas lesh shen ny t'ou smoo dy riachtanagh ayns cummey ny pushtey coadey.

Amas coardail lesh Paris

2.0 t

Mean-valley chruinney jiu

6.0 t

Mean-valley ny Steatyn Unnaneyssit

16.0 t

Mean-valley Australiagh

17.0 t

Yn buidjey carbone ayns çhengey chaalin. Son kiare jeh'n chaayr 50% dy choyrleaghey fo 1.5 °C, ta'n buidjey cruinney foast myrchiagh 400 billion tonnes of CO₂. Ta surranseyn cooilleeney rish myrchiagh 55 billion tonnes a year — myr shey feed blein jeh buidjey. Cha vel shen shee ashaagh ayns shey feed blein. She shen dy vel surranseyn foast now, goll er ny lossey dy tappee as dy sheeltagh, cha nee dy scorrey er laa erbee lurg shen.

Caibidil 2B · Yn vea ayns cruinney ta geamagh

Cha nee eer ayrn 1.5 °C as 3 °C ny earroo.

She yn yn yn y rheynn erree erbee eddyr doilleeid as caillaghey son biljyn dy leih. Lhiggey laue y lioaraghey ny dooinney lesh yn eeckal er-gerrey. Ta'n lioar shoh cur un caibidil slane dys ny t'eh dy jarroo agh ny frrackan dy ere ny lhiggey ny h-ynnydys dy lioar, ny clouddan, ushtey, as yn teyrey yn clagh ren obbyr magh er-oie dooyrt medicyn dy row jeianys.

Impact domain	At +1.5 °C

Ta figooryn y scenair jeant ass ny lioaraghyn meastagh IPCC as yn lioaraghey furail aitt, myr t'eh currit ry-cheilley ayns Caibidil 2B.

The data

Nuyrderyn cummal dy liooar dy jarroo son reih er son.

Ta dagh emission factor ayns yn lioar goll da sorçh cloie foast. Jees ass ny 58 tableyn, er laue ayns shoh ayns slane.

Jeeaghyn dy gholl

Gramyn CO₂e son dagh çheu-passagyr-kilometre

Sources: EEA, IPCC, manufacturer LCA reports. Ta'n aer-shooil cummal ~2× radiative forcing multiplier son contrails, water vapour as NOₓ ec yr thalloo.

Protein, per unit of carbon

Gramyn dy protein currit magh son kg CO₂e — sharey t'eh ny share

Primary source: Poore & Nemecek (2018), trooidyn cruinn er fud yn hoilshaghey lifecycle eck.

6.0 kg200 g beef burger

→

0.18 kg200 g lentil burger or dhal

Yn swap s'maynrey ta'n lhieeney ta ayns y lioar. Jannoo shoh daoie times ayns shiaghtyn sauail ~600 kg CO₂e y vlein — 30% jeh'n lhied elley pharis-compatible annual budget slane, ass un reih ayns cheim cooie.

Jannoo ny nuyrderyn firrinagh

Ta un tonne CO₂e cha nee veg derrey t'ou fakin eh ayns dty aigney.

92 treesNhee ta dy choyrt stiagh dty 2-tonne annual budget slane. Ta un billey goaill stiagh mysh 21.77 kg CO₂e y vlein.

2.8 tonnesUn urchaar er dty haghyrt London–New York, son dagh passagyr. Ny smoo na budget seyrle y vlein shoh slane ass un shioltaghey.

8.7 tonnesUn urchaar er dty haghyrt London–Sydney, son dagh passagyr — kiare cadjin na'n budget y vlein.

13 kmLhiggey ry-chadjin myr astyr drayver son un beef hamburger (~2.5 kg CO₂e).

85 kgJannoo un smartphone 'sy traa nish — mysh tree billey er y vlein jeh'n absorption.

65 : 1Yn cooish eddyr ny yns higghee share's low-emission yn bainney cadjin: beef ec 29.9 kg/kg, vegitagh ec 0.5.

What you'll actually learn

From the science to your Saturday shopping list.

Ta leabhryn climagh er-scaaillaghey ec ny dy liooar er yn chaggagh. T'eh shoh goaill toshiaght ayns shen as goll er — stiagh ayns dty phlat, dty cheum, dty thermostat, dty edjyn, as eisht stiagh ayns plana t'ou son gholl er nyn son.

Measure honestly

How scientists actually calculate emissions, what an emission factor is, how to build a personal baseline — and why most online calculators mislead.

Biah, ayns mean-fhios

Lioar coileayn er eamyn biah, lesh 19 dooghyn bwooidjagh, biah er choayl, lussyn sheyrey as keim eh shibber — as corys-mooar praghtical son jannoo caghlaa er yn chooyl shiu gee.

Gow ny caghlaaghyn dty ghenney

Daeed dooghyn caghlaa highey coontee per chilomeadar, mod-harraidhyn EV firrinagh lesh dooghyn greiney firrinagh, immydyn jannoo, as raad dy jarroo ta traih mie ny share na jiooldagh.

Yn thie t'ou bogey

Torranyn boggey currit ayns order liorish CO₂e per kWh, pump cheylley coontit ry-cheilley rish boiler gas harrish 15 bleeaney, neart greiney liorish çheer, insulation, greiney as stowal.

Dy chooilley red t'ou ayd

Carbon jannoo ayns fonnidyn, laptoppyn, greeshyn thie, sooghys as eaddeeyn — as cre ta'n economy chliammitagh dy jarroo sauail, stoo liorish stoo.

Plan, eisht taillt

Budget charbaid persoonagh, detox 30-laa, traiectorie bleeaney-er-bleeaney — eisht y caibidil er raad ta jannoo persoonagh stoggal as caghlaa coryssagh goaill yn kiarethin.

Lhaih roish dy cheannaig

Kiare passageyn, gyn caghlaa.

Caibidil 1 — Cre ta Carbon Footprint?

Va'n fockle feeu "carbon footprint," aghinney da surransyn gassyn glass, geddyn faaseyn mooarey ayns toshiaght ny bleeaneyyn 2000 — as ta'n vrennys echey coait lesh caibidil beg ayns er-hieaghtagh corpragh. Va'n cummal ollym BP roie campaigne ard-chooishynyn eddyrey 2004 as 2006 va cur stiagh "carbon footprint calculator" ec y pobble as va cur bree da'yogh eiyrtysyn persoonagh oc y chiangley as y lughtyn. Va'n campaigne chastag liorish soilshaghtyn çheerey bhaarey va grah dy vel eh jannoo yn cooish goaill ersooyl veih'n industry fosyl fuel dys deiney, jannoo consumers braew felagh son dooieyn er ny jannoo liorish neartyn coryssagh sodjey na smoo na foast fo stiurey yonnagh aon phersoone.

Caibidil 2 — Yn Crise Çheeragh ayns earishyn

She shin ream er ooilley-ghinny. my ta shiu cruinnaghey 55 billoon tonnyn CO₂ ayns blocyn doo, dagh unnid meudyn un container shiandagh, bee'n cruinnaghey skeayley veih'n thalloo gys y Eayst as ersooyl ny yei — ymmodee keayrtyn harrish. Gagh blein. Gyn obbragh. She shen ee'n gheayrt eackeaghtagh noa er ny liorish y social-economy ain, goll er lhiassaghey ennaghtagh ny smoo na gyn pause on the first coal-fired steam engine began turning wheels in eighteenth-century Britain.

Caibidil 5 — Ny surransyn lhiettrimmagh er dty phlaite

Ayns y phaart persoonagh, ta biah da mennick yn fer smoo-chiunney ny yn nah fer smoo-chiunney ayns carbon footprint dooinney, er scaa ny share t'eh eeaghtyn. Dooinney nagh jannoo taauey er aer dy mennick, ta biah credjoo dy shickyr ny lever earroo 1. As noi aghtyn boggey thie ny coryssyn çheerey — ta shennaghys mooar criptagh eisht foast er ennaghtyn fundalagh, ny ta treishteil er alternatives nagh vel ry-gheddyn — ta'n daoinys agh varys son y chooid smoo ayns çheeraghyn berrey cummalys dy caghlaa nish, jiu, lesh beg cost as cooishyn co-hobbragh dy velagh son slaynt as mieys.

Caibidil 19 — Co-chruinnaght, aght-coyrlagh, as caghlaa coryssagh

Ta jannoo persoonagh femeagh agh cha nel eh lhisagh ynrican. Ta earrooyn y budget charbon dy eiyrtyn shen lioar fysail: eddyr my ta dy chooilley dooinney ayns y theihll lhiassit goaill er y caghlaa persoonagh smoo askhtagh ta ry-gheddyn — bea vegan, gyn jiooldagh, car elecrish, pump cheylley, inslagaidyn smoo — bee ny lhiettrimmysyn emshyragh granneyagh agh bee ad foast gannish ny 1.5 °C gyn caghlaa ec paart y sistem co-lhiassit.

Pargys · Queig dtymlan portraityn

Cha nel yn raad-coyrt cheayn ayns liorish dy chooilley unnid.

Queig dooinney, queig çheeraghyn, queig jannoo smoo smoo leah as impact ennymagh dy chooilley. Ta'n lioar gobbraghey trooid dy chooilley fer lesh traiectorie bleeaney-er-bleeaney as earrooyn firrinagh.

Sarah

Denver, USA · manaidseyder marketing

24.5 → 10 tharrish wheig bleeaney

SUV mooar, thie fo-bane mooar, as dait feill-lonit. Ta'n chied vlein biaillt er dait as tariff; ta'n jannoo chiaral — EV, greiney, pump cheylley — dy gheddyn ny s'yndagh. Red 59% geayll, foast cha nel er yn whaill, agh roish mie.

Ahmed

London, UK · çhyndaayr cummey ecklee

61%jeh'n footprint echey ta jiooldagh

Cha nel car, ny smoo veg vegetarian, annym-choonee — yn bea "cooie son yn çhennym". Kiare jiooldaghyn eddyr-ashoonagh ayns blein ta brishey ooilley jeh. Ta'n case echey soilshaghey dy vel yn gniomh smoo askeallagh glen-chaadlagh cha nel eh goaill y raad s'ry-oair.

Maria

Baavaria çheyr, Germany · sooree

Kiastagheyas bleayntyn as bee

Cha nel carkaddan cloaie, Golf aarlit shlee, ny thie dooghyssagh lesh foayr gas. Ta oltaghyn BAFA as ny loaneyn KfW Germania cur yn pump keim chraghllagh — argid, cha nel gerjaghey.

James

Sydney, Australia · consultant

15.3 tjeh 27 t, veih çhaghnoayllee

Daa-veihyl jeig as kiare veihyl eaghtyragh ayns jerrey bleeaney, ooilley er son obbyr. Cha vod eh scuirr echey kyndagh lesh eeckley hene. Ta y caibidil echey mychione caghlaa eddyr-shirveishagh, cha nee cairys persoonagh.

Lin

Singapore · financial analyst

Trooid-ymcaghlaayr as y çheshaght

Ta eh liorish eeaght, mollit lesh yn MRT as dyn caar. Cha nee yoltaneys eayn, agh ym-lioar eaystagh — cur-my-ner dy vel yn un ymmyd ec pobble mooar jeh costseyn anchasley ayns dy chooilley voayl.

As eisht, uss.

Ta Caibidil 4 cur yn bun-riochyn hene ayd; ta Caibidil 17 jannoo budget bleinoil ass; as ta Caibidil 18 cur toshiaght ort ayns 30 laa.

Cre'n voish ta ny earrooyn

Ta dy chooilley foinym eiraghtagh ry-akin.

Cha nee jannoo smoo eh y lioar, agh aght çhyndaays. Ta ny datasheeylyn shoh fo'n chooyl echey — ooilley foshlit, ooilley ry-hesht.

Eitlys eddyrnyn

Cileeaghtyn CO₂e per cilo-graam dy bee, myr jordainyn seaghnit veih eshynyn bio-lifeyshaghtyn fo-heshtit er keeadyn dooghyssagh.

Ard-fhoyr: Poore & Nemecek (2018)

Eitlys çhaghteryn

Graihnyn CO₂e per peihnyr-kilomeadar. Ta figuryyn aer-vieauid lientyn yn mulley foiljagh 2× son contrails, oo eayn as NOₓ ec ardyn.

Foyryn: EEA, IPCC, aaithrisyn LCA jannoo-eeastagh

Eayrtys & kiastaghey

Graihnyn CO₂e per kilowatt-oor dy chiass eddyr-mheeltagh ny dooselectricity currit magh, lesh neartyn greese nashonal er ny choyrlaghey reesht as reesht.

Foyryn: IEA, Ecoinvent, aaithrisyn eaghtyr-lhondageyn eash nashonal

Carbon jeh troaraghtyn ayns nyn gooid

Carbon jeh troaraghtyn lifeyshaghtagh veih nyn totane oidjaght trooid jannoo as co-chluggim, son feedhyn, laptopyn, unnaneysan as caairyn.

Foyryn: aaithrisyn Both, Samsung, Google mychione yn eashaght; Ecoinvent; Carbon Trust

Ayns ny çheeraghyn

CO₂e bleinoil per dooinney er bun caitnys — sentyn as skeealyn currit da'n çheer caitnyssagh, cha nee da'n çheer jannoo.

Foyryn: Our World in Data, Global Carbon Project, World Bank (2023–24)

Aarteyn lheahaght ghlass

Caghlaa CO₂e er skaal bishaght choitchionn: meathane ec 25×, nitrous oxide ec 298× harrish 100 bleeaney — as shen yn aindagh ta bee-feill shenney cho ard gyn lossey fo-ooil noo.

Foyr: IPCC assessment reports

Table of contents

Tree-chaddee caibidil, veih yn chied phrionnsabal dys 2050.

1Cre esh Carbon Footprint?
2A Chrisis Aeredda yn earrooyn
2BBea ayns seihll ta geayney — Cre ta dy chooilley cheim myr ainagh dy kinjagh ny 'syn
3Kysht meanyn kymmyrktyn baate
4Goll er shennsaghey dty linney hene
5Y vlein ghroamagh er ny cummey er dty lau
6Yn stiurey slane er kymmyrtyn bialley
7Towshaghey dty skeayl — Caairys obbree dy yannoo
8Kysht nee mayd gynsee as cre'n fa ta eh scanshoyl
9Skeeal y charr lhiat
10Ee, trooid-harbaa theayagh, as y raad roish tra
11Goaill tastey er y çhiarnaght, fynney, as dty choontey foyrgeyder
12Yn raad gys thie noa-yoarree
13Sostyn, greiney, as y ghriod
14Yn costys firrinagh jeh dy chooish t'ou ayd
15Fashan, eaddeeyn, as treihilltyn
16Yn jeeagh-cylloo — ceayl sloo, ceayl ny share
17Towshaghey dty chuntys carbin hene
18Yn plana lhiauyr 30-laa er son caas carbin
19Pobble, taghyrt, as caghlaa corysagh
20Thecnilaghtyn noa dy nodagh sauail shin
21Sgoillaght da 2050
22Decarbonr — Yn app ta cur pooar da'n lioar shoh
AAppendices — teblynn possan, cooishyn sheshoil, lhaih y lheid elley

Jeih eaghtyn

Scruit un cheayrt. Transladit son y slane, queig-jeig, fheeu.

Ta dagh eaghtyn ta lhiassaght slane — cha nee goaill ane — myr eBook Kindle as lioar-pabyr. T'English as Frangish er ny chreck nish; ta'n chooid elley goll er cloie trooid dy mie dys cheayl.

As jeih as feed elley, lane-thranslatit

Gagh çhengey t'er mayrn ta Amazon cur lhiu. Thranslittyn slane jeh'n 23 caibidil ooilley — cha nee goaill ane — goll er cloie trooid myr ta ooilley er ny chryssaghey.

Afrikaans

Alsatian

ArabiceBook

Basque

Breton

Catalan

Chinese (Traditional)eBook

Cornish

Corsican

Eastern Frisian

Finnish

Frisian

Gaeilge

GujaráitieBook

Eabhrais

HiondúiseBook

Íoslainnis

Gaeilge

Seapáinis

Laidin

Lucsambuirgis

MailéalaimiseBook

Mhanainnis

MaraitiseBook

Iarthar-Fhriislannais

Nua‑Lochlannais

PeirsiseBook

Polainnisprint

Provençal

Rómainis

Albainis

Gaeilge na hAlban

TamailiseBook

Úcráinisprint

Breatnais

Giúdaisprint

Maidir leis an údar

Stephane Sprauer

Forbróir bogearraí, fiontraí, agus moltóir ar eolaíocht aeráide inrochtana. Is é cruthaitheoir Decarbonr, aip iOS a chuidíonn le mílte daoine a gcuid astaíochtaí laethúla gás ceaptha teasa a rianú agus a laghdú trí chomhéadan bunaithe ar shonraí.

"Tá na sonraí ann. Is é an dúshlán iad a dhéanamh inrochtana — tosca eolaíocha astaíochtaí a iompú ina rud is féidir leat a úsáid ag bricfeasta."

App Store decarbonr.com

D’fhás a spéis i gcuntasaíocht charbóin as an gcreideamh go raibh castacht na heolaíochta aeráide ag coinneáil formhór na ndaoine ó bheith ag plé leis an bhfadhb go fiúntach. Rugadh Decarbonr as an gcreideamh sin: sonraí astaíochtaí athbhreithnithe ag piaraí i lámha aon duine a bhfuil fón cliste aige, gan céim san eolaíocht chomhshaoil de dhíth. Is é an leabhar seo an chéad chéim eile — an comhthéacs, an eolaíocht, na huimhreacha sonracha, agus na céimeanna praiticiúla, in aon imleabhar amháin.

Eaghtyn Frangish — Votre Empreinte Carbone

Focklyn oney

Roish da nee oo kionnaghey.

Nee shoh reesht lioar elley gys cooney goll-rish my veih?

Cha nel. Tannaghtid 1 t'eh t'eh y cur liorish soilshey dy row yn chruinaght "carbon footprint" er ny phoosey liorish campain tone lhuingey, ren ymmyrkey y choayl er y chonsaintee — as t'eh yn capitl 19 gra dy kiart nagh jean jannoo ayns oik cailltagh feie dy ahyryn hene shassoo ec y tharget 1.5 °C. She shen dooin yn traidys jeh'n lioar dy vel caghlaa individiual as caghlaa systemagh bioh feayr as nagh vel ad ayns straih.

Vel my v'ad foayr cliaghtan ec y scien?

Cha nel. Ta dy chooilley theirm thechnyssagh er ny hengyrt ayns yn cheead aller dy vel eh cheayll dooyrt, as ta dy chooilley earroo er ny chaghlaa dys red corree — billeyyn, chilmeytryn er ny roie, laa elley jeh's y system teevee. Ta'n ymmyd dy chiarroo; cha nel yn lhaih.

Cre cha noa ta ny figgyragh?

T'emission factors er nyn goit ass yn data-set published smoo noa ta ry-akin ec traa ny screeuee, lesh data footprint-yn hengey 2023–24 as grid intensities ass current national energy agency reporting. Ny lhisagh earroo ve ny range ny estimate, t'eh yn lioar gra shen.

Vel yn paperback yn un cheeill as yn eash Kindle?

Ta — yn un thext, taidjaghtyn as appendices. Ta'n print interior er ny typeset son yn duillag; ta'n eash Kindle reflow.

Nua irree vees yn hoght çhaghnoagh elley ry-gheddyn?

Ta eaghtyn Germaanish, Spaainish, Eadarlannish, Portiugish, Ollanish, Danvish, Norveishish as Suaineesh er ny screeu as typeset. Taad soilshaghey liorish veaghyn — t'eh y duillag shoh caghlaa mychione dy chooilley cheayll.

Nee my dooin y app Decarbonr y ymmyrkey son ymmyrkey y lioar?

Cha nel. Ta'n lioar slane er hene; ta'n capitl 22 cur coontys er yn app son lhaihdee ta monney gennagh, agh t'eh dy chooilley chunntys ayns yn lioar er ny choyrt son y drommeyr.

Dy choarysdy oo to shrink eh.
Cha dug peiagh ennagh dy fertaghey how much.