Iqembu lososayensi ukubona ukhuni zithutha njengoba usongo sezulu

Iqembu lososayensi kusukela Scientific Advisory Board yase zezifundiswa European (EASAC) nimelene ukusetshenziswa lisebenza izinkuni zithutha. I esikhundleni emikhulu amalahle ne biomass kuchubekisela ukuguquka kwesimo sezulu kanye ingozi angayibambi imihlangano Paris 'imigomo sezulu. Isizathu siwukuthi zithutha ukukhulula CO2 ngaphezulu ngamunye kilowatt ngehora kuka amalahle. I CO2 ikhishwe kungakapheli isikhathi esifushane kakhulu, kodwa ngibopha kwalokho kuthatha amashumi eminyaka. Ososayensi musa ngokuyinhloko kuyaphikisana nenkulumo yokuthi ukusetshenziswa lisebenza biomass kuyinto wokunciphisa isisi esiyingozi emoyeni esikhathini eside. Nokho, lesi simo sezulu Kunesidingo esiphuthumayo ukuze kungabikho enye CO2 kwekhabhoni kungenziwa ezingaki.
Nasi isihloko sokuqala:
I amandla omlilo of izinkuni biomass ugesi ukushisa futhi okusakazwa eYurophu njengoba i solution kubalulekile ekufezeni sezulu. Kodwa ngaphezu kwakho konke, ukhuni zithutha ukukhulula CO2 ngaphezulu ngamunye kilowatt ngehora kuka amalahle, njengoba uchungechunge imibiko yi Scientific Advisory Board yase zezifundiswa European (EASAC) imibukiso. "Ukhuni zithutha ungeyena umlingo ukuze supply ugesi nokushisa ngaphandle iqhaza ekushintsheni kwesimo sezulu. Ngisho noma i-EU ne ezombusazwe kazwelonke ukudala okukhuthaza ukusetshenziswa kwabo ngezinga elikhulu, "kusho Prof. Lars Walloe, usihlalo wesimiso kwezemvelo EASAC.
"Lalela isayensi" kuyinto ukukhala impi koLwesihlanu Esizayo ukunyakaza. Futhi njengoba ingqungquthela sezulu ngo Madrid luphela, kuba sobala nsuku zonke: Kokubili ngokoqobo yokuguquka kwesimo sezulu futhi ukufuna amakhambi zobuchwepheshe ukuvimbela ukwanda okwengeziwe e izinga lokushisa embulungeni yonke iya ngokuya ngokweqile futhi ngaphelelwa ithemba okwengeziwe. I-European National zezifundiswa wezeSayensi manje esiyisixwayiso sama ukungafani sina phakathi isimo samanje isayensi ezombusazwe yangempela uma kuziwa wezinto zokubasa.
"Uma thina namanje ufuna ukulondoloza isimo sezulu, ayikho enye indlela ngaphandle ukuze kokumisa iwukushiswa kwamalahle kanye nezinye izinto zokubasa ezimbiwa phansi. Kodwa siye futhi ngokuphindaphindiwe waveza ukuthi esikhundleni emikhulu kwamalahle yizinkuni biomass ngesivinini kwesimo sezulu Ezimweni eziningi futhi kwandisa ingozi ukuthi Paris sezulu Okuqondiwe ngeke ufinyelelwe. Isizathu sisobala: lapho amahlathi igawulwe isetshenziselwe njengoba Bioenergy, wonke okuqukethwe carbon biomass is adedelwa emkhathini ngokushesha okukhulu, kodwa engakaze sesichithwa izihlahla ezintsha amashumi eminyaka. Lokhu kuphambene ukuphuthuma ukulwa obumbi sezulu, "kusho EASAC sika UProfesa Michael Norton, umqondisi we-EASAC uhlelo kwemvelo.
Naphezu kwaleso sixwayiso zososayensi: Biomass amalungiselelo e somyalelo EU amandla avuselelwayo ukulimaza sezulu okungaphezu kokuphonswe yibo bazuze
Naphezu kwezixwayiso eziningi zesayensi, imithetho-UN on CO2 ezimali yavala amehlo imiphumela zezulu kwamahlathi ukuze izishise. Ngokuhambisana nemithetho UN, i-2018 olubukeziwe EU ngemihlahlandlela amandla avuselelwayo amagesi EU ngidayisa uhlelo (ETS) nicabangele ukusebenzisa biomass njengoba CO2-hlangothi. "Lokhu kunikeza umqondo ongeyiwo kubathengi amandla nezombusazwe izinqumo, futhi lezi izikhala okudingeka zivalwe ngokushesha," wanezela Michael Norton.
"Kungenzeka ukuthi Umqondo sezulu hlangothi komagazini ukhuni biomass kwadingeka abanye ubuqiniso ngo-2009, lapho ukuphuthuma ukulwa ukufudumala kwembulunga yonke ayizange wazibona njengoba enjalo. Iphuzu laliwukuthi nje ukuthi WOKUTSHALA IZIHLAHLA kususa njengoba CO2 kakhulu emkhathini njengoba ikhishwe ngesikhathi omlilo, kodwa focus namuhla ku nokukhawulela ukufudumala kwembulunga yonke-1.5 noma 2 ° C. Le idinga izinyathelo ezisheshayo - asikwazi ukulinda izihlahla ezintsha lokuvuselela ngenkathi evuthayo biomass inqwaba carbon kuthiwa akhishwa emkhathini, "kusho uMichael Norton.
Uxhaso ephezulu amandla avuselelwayo ezenziwe zatholakala kwamanye EU ilungu uthi sezishiye ukukhuphuka okukhulu ukusetshenziswa izinkuni biomass - kuhlanganise esikhundleni amalahle izitshalo ezinkulu amandla ukungena, isibonelo kusuka USA, Canada nezinye European amazwe, Kwamahlathi ukwenziwa ukhuni zithutha, okuyinto zithutha phakathi nezinkulungwane amakhilomitha, iye anezimboni kuze kube sezingeni amathani amaningi million ngonyaka.
COP25 - "Ukushayela ngaphandle uSathane ne ngoBelzebule"
Isici ebalulekile ukusetshenziswa biomass yiyona okuthiwa inkathi carbon payback, ie isikhathi kuthatha izihlahla ezintsha amunca carbon ezikhishwe ngesikhathi omlilo. I amandla omlilo of izinkuni biomass neze sezulu kwezomshado, kodwa ukukhishwa CO2 emkhathini ngesikhathi carbon payback, okuyinto izihlahla okubaluleke oneminyaka ephakathi kuka-50 no-100. Lokhu kufanele kunakwe lapho ekuhloleni indlela umgomo nokukhawulela Ukushisa lungene 1.5 degrees bungatholakala. Ngokusho EASAC, nokusimama sokunquma biomass ngabe usethe esiphezulu CO2 kuvunyelwe payback isikhathi ukuthi iyahambisana Paris Sivumelwano.
I Madrid inkomfa babona kanjani ohulumeni kazwelonke ukuziqhayisa impumelelo yabo. Esidukisayo imithetho CO2 ezimali enze kube nokwenzeka ukuba kuncishiswe kwekhabhoni kazwelonke ephepheni ngokumane ziguquka zisuka amalahle (lapho kwekhabhoni kufanele ibikwe) ukuze biomass amazwe (aboniswe njengoba zero kwekhabhoni). "Ukusetshenziswa lisebenza izinkuni biomass lugujwa njengoba isaga" esiliva ibhola "enikeza osopolitiki, bamahlathi izinkampani amandla a nongenza ngoba imithetho zamanje ubavumele ukuba zixhaswe njengoba ophinde uvuseleleke. Kodwa isimo sezulu kunjengoba ubungeke ukushayela ukukhipha udeveli ekucabangeni ne ngoBelzebule, "kusho uDkt William Gillett, umqondisi hlelo amandla EASAC sika.


Thumela isikhathi: Jan-05-2020

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