Group of masana kimiyya ganin itace katsin a matsayin barazana ga sauyin yanayi

A rukuni na masana kimiyya daga Scientific Shawarwari Board na Turai Jami'an (EASAC) ne a kan mai kuzari da yin amfani da itace katsin. A manyan sikelin-canzawa na ci tare da biomass exacerbates canjin yanayi da kuma hadarin ba ganawa Paris 'sauyin yanayi raga. Dalilin shi ne, katsin saki mafi CO2 da kilowatt hour fiye da kwal. A CO2 da aka saki a cikin wani dan kankanin lokaci, amma daga bisani dauri daukan dama da suka gabata. The masana kimiyya ba fundamentally musanta sanarwa cewa mai kuzari amfani da biomass ne sauyin yanayi tsaka tsaki a cikin dogon lokaci. Duk da haka, da sauyin yanayi da halin da ake ciki shi ne a yanzu haka da gaggawa cewa babu wani karin CO2 watsi za a iya afforded.
A nan ne ainihin labarin:
The konewa na itace biomass don samar da wutar lantarki da kuma zafi ne karbe a Turai a matsayin wani muhimmin bayani ga cimma sauyin yanayi raga. Amma sama da dukan, itace katsin saki mafi CO2 da kilowatt hour fiye da kwal, a jerin rahotanni da Scientific Shawarwari Board na Turai Jami'an (EASAC) nuna. "Itace katsin ne ba wata mu'ujiza magani ga samar da wutar lantarki da kuma zafi ba tare da bayar da tasu gudunmuwar da sauyin yanayi. Ko da EU da kuma na kasa da siyasa tunaninsu da amfani a kan wani babban sikelin, "ya ce Prof. Lars Walloe, shugaban muhalli shirin na EASAC.
"Saurari kimiyya" ne kururuwar yaƙi da Juma'a ga Future motsi. Kuma kamar yadda sauyin yanayi taro a Madrid ya zo ga ƙarshe, shi ya zama bayarda kowace rana: Duka gaskiya na canjin yanayi da kuma search for fasaha mafita don hana kara Yunƙurin a duniya da yawan zafin jiki suna zama ƙara matsananciyar. A Turai National Jami'an na Kimiyya ake yanzu gargadi na tsanani discrepancies tsakanin halin da kimiyya da kuma real siyasa lõkacin da ta je biomass.
"Idan har yanzu muna so ka ajiye da sauyin yanayi, babu wani madadin zuwa tsayawa da kona kwal da sauran burbushin habaka. Amma mun kuma akai-akai ya nuna cewa, manyan-sikelin canzawa na ci da itace biomass accelerates sauyin yanayi a lokuta da dama kuma qara hadarin da cewa Paris sauyin yanayi hari ba za a sadu. Dalilin shi ne mai sauki: a lokacin da gandun daji suna sare kuma amfani da man shuke-shuken, dukan carbon abun ciki na biomass da aka saki a cikin yanayi sosai da sauri, amma ba a dauka har ta sabon itatuwa shekaru da dama. Wannan ke kan gaggawa na yaki da sauyin yanayi rikicin, "ya ce EASAC ta Farfesa Michael Norton, darektan na EASAC muhalli shirin.
Duk da masana kimiyya 'kashedi: KATSI guzuri a cikin EU umarni kan sabunta kuzari cutar da sauyin yanayi fiye da suka amfana
duk da yawa kimiyya gargadi, MDD dokoki a kan CO2 lissafin kudi rufe idanu na yanayin effects na deforestation domin ya ƙone su. A daidai da Majalisar Dinkin Duniya da dokokinta, da 2018 bita EU jagororin domin sabunta kuzari da kuma EU watsi fatauci tsarin (ETS) la'akari biomass amfani kamar yadda CO2-tsaka tsaki. "Wannan ya ba da ba daidai ba alama don samar da makamashi da masu amfani da siyasa yanke masu yi, da kuma wadannan gibba bukatar da za a rufe da sauri," kara Michael Norton.
"A ra'ayi na sauyin yanayi saka hannu a itace biomass iya yi da wasu tushe a shekarar 2009, lokacin da gaggawa zuwa fama da xumamar duniya da aka ba su gani ba kamar yadda irin wannan. A ra'ayin da aka kawai cewa reforestation kawar da yawa CO2 daga sararin sama kamar yadda aka saki a lokacin konewa, amma da mayar da hankali a yau ne a kan iyakance ɗumamar duniya zuwa 1.5 ko 2 ° C. Wannan na bukatar gaggawa mataki - ba za mu iya jira sabon itatuwa zuwa regrow yayin da kona biomass a cikin manyan yawa na carbon an pumped cikin yanayi, "in ji Michael Norton.
A high tallafin domin sabunta kuzari da cewa an sanya samuwa a cikin wasu EU kasashe mambobin kungiyar sun kai ga wata babbar karuwa a cikin yin amfani da itace biomass - ciki har da sauyawa na ci a manyan ikon shuke-shuke da shigo da, misali daga Amurka, Canada da kuma sauran Turai kasashen, Deforestation domin samar da katako katsin da ake hawa kan dubban kilomita, an arzikin masana'antu da har na da yawa ton miliyan a kowace shekara.
COP25 - "Tuki daga shaidan da Beelzebub"
A m factor a cikin yin amfani da biomass ne da ake kira carbon payback lokaci, watau lokacin yana daukan sabon itatuwa zuwa sha da carbon saki a lokacin konewa. Konewa na itace biomass ne ba faufau sauyin yanayi-tsaka tsaki, amma sake CO2 cikin yanayi a lokacin da carbon payback lokaci, wanda ga mafi muhimmanci itatuwa ne tsakanin 50 da 100 shekaru. Wannan yana zuwa da za a ɗauke shi zuwa lissafi a lokacin da kimantawa yadda Manufar iyakance dumama zuwa a kalla 1.5 digiri za a iya cimma. A cewar EASAC, da] orewar samar da sharudda ga biomass zai yi don saita mai iyakar halatta CO2 payback lokaci cewa shi ne mai jituwa tare da Paris Yarjejeniyar.
The Madrid taro sawa yadda gwamnatocin} asashensu taƙama da nasara. Yaudarar sharudda CO2 lissafin sa shi yiwuwa a rage kasa watsi a kan takarda da kawai ya sauya sheka daga kwal (inda watsi da za a bayar da rahoton) to shigo da biomass (nuna yadda sifili watsi). "The kuzari amfani da itace biomass ne bikin a matsayin proverbial" azurfa ball "cewa ba 'yan siyasa, foresters da makamashi kamfanonin mai win-win halin da ake ciki saboda halin yanzu dokoki da damar su za a tallafi kamar yadda sabunta makamashi. Amma ga sauyin yanayi shi ne kamar yadda ka son ya fitar da shaidan daga tare da Beelzebub, "in ji Dr. William Gillett, darektan EASAC ta makamashi shirin.


Post lokaci: Jan-05-2020

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