Dambudziko: Masayendisiti Anoti Isu Tapfuura Carbon Limit

Mhinduro: Haizowanikwe muInfrastructure Bill

Shanduko yemamiriro ekunze ndiyo tyisidziro huru uye iri kukurumidza kukura kumakungwa edu nemahombekombe ecosystem. Tave kutoona mhedzisiro yazvo: mukukwira kwemvura yegungwa, mukukurumidza kupisa uye shanduko yekemesitiri, uye mukunyanyisa kwemamiriro ekunze pasi rese.

Pasinei nekuedza kwakanyanya kuderedza kuburitswa, iyo IPCC's AR6 mushumo inoyambira kuti tinofanira kuderedza kugadzirwa kweCO2 yepasi rose nezvikamu makumi mana neshanu kubva muzana kubva pamazinga a45 gore ra2010 risati rasvika - uye kusvika "net-zero" panosvika 2030 kuderedza kudziya kwepasirese. 1.5 degrees Celsius. Iri ibasa rakakura apo parizvino, mabasa evanhu anoburitsa matani anosvika mabhiriyoni makumi mana eCO40 mumhepo mugore rimwe chete.

Nhamburiko dzoga hadzina kukwana. Hatikwanise kumisa zvizere zvinokonzeresa hutano hwegungwa redu pasina scalable, inokwanisika, uye yakachengeteka Carbon Dioxide Removal (CDR) nzira. Tinofanira kufunga mabhenefiti, njodzi, uye mutengo we Ocean-based CDR. Uye munguva yemamiriro ekunze ekukurumidzira, bhiri idzva rezvivakwa mukana wakarasika wekubudirira chaiko kwezvakatipoteredza.

Kudzokera kune Basics: Chii chinonzi Carbon Dioxide Removal? 

The IPCC 6th Ongororo yakaona kukosha kwekudzikisa kuburitswa kwegasi regreenhouse (GHG). Asi yakaonawo kugona kweCDR. CDR inopa nzira dzakasiyana-siyana dzekutora CO2 kubva mumhepo uye kuichengeta mu "geological, terrestrial kana madhamu egungwa, kana mune zvigadzirwa".

Zvichitaurwa zviri nyore, CDR inotaura nezvekutanga kunobva kushanduka kwemamiriro ekunze nekubvisa kabhoni dhayokisaidhi kubva mumhepo kana mbiru yemvura yemugungwa. Gungwa rinogona kuve mubatsiri kune yakakura-chiyero CDR. Uye CDR yakavakirwa mugungwa inogona kubata uye kuchengeta mabhiriyoni ematani ecarbon. 

Kune akawanda mazwi ane hukama neCDR uye maitiro anoshandiswa mumamiriro akasiyana. Izvi zvinosanganisira zvigadziriso-zvakavakirwa-zvakadai sekudyara masango, shanduko yekushandiswa kwevhu, uye dzimwe nzira dzeecosystem-based. Zvinosanganisira mamwe maindasitiri maitiro - akadai seyakananga mhepo kubatwa uye bioenergy ine kabhoni kubatwa uye kuchengetedza (BECCS).  

Nzira idzi dzinoshanduka nekufamba kwenguva. Kunyanya kukosha, ivo vanosiyana mune tekinoroji, kusingaperi, kugamuchirwa, uye njodzi.

MASHOKO ANOKOSHA

Iko Itsva Yezvivakwa Bhiri Inopotsa Mucherechedzo

Musi waNyamavhuvhu 10, Seneti yeUS yakapasa 2,702-peji, $1.2 tiririyoni Infrastructure Investment uye Mabasa Mutemo. Bhiri iri rakabvumidza mari inodarika mabhiriyoni gumi nemaviri emadhora ekubatisa kabhoni matekinoroji. Izvi zvinosanganisira kubatwa kwemhepo yakananga, nzvimbo dzenzvimbo dzakananga, mapurojekiti ekuratidzira ane marasha, uye rutsigiro rwepombi network. 

Nekudaro, hapana kutaurwa nezvemugungwa-based CDR kana yezvakasikwa-based solutions. Bhiri rinoita serinopa nhema tekinoroji-yakavakirwa mazano ekudzikisa kabhoni mumhepo. $2.5 bhiriyoni yakagoverwa kuchengetedza CO2, asi pasina nzvimbo kana chirongwa chekuichengeta. Chii chakanyanya kuipa, tekinoroji yeCDR yakakurudzirwa inovhura nzvimbo yemapaipi ane CO2 yakadzika. Izvi zvinogona kukonzera kudonha kwenjodzi kana kutadza. 

Pamusoro pe500 masangano ezvemamiriro ekunze ari kupikisa pachena bhiri rezvivakwa, uye akasaina tsamba achikumbira zvimwe zvakasimba zvinangwa zvemamiriro ekunze. Nekudaro, mapoka mazhinji nemasaenzi anodzosera bhiri rekubvisa kabhoni tekinoroji kunyangwe iri pasi perutsigiro kumaindasitiri eoiri negasi. Vatsigiri vanofunga kuti ichagadzira zvivakwa zvinogona kubatsira mune ramangwana uye zvakakodzera mari ikozvino. Asi isu tinoita sei nekukurumidzira kwekushanduka kwemamiriro ekunze - uye kuchengetedza zvipenyu nekuunza zviito zvekudzorera pachiyero - tichiziva kuti kukurumidza kuri kwete nharo yekusangwarira mukunzwisisa nyaya?

Iyo Ocean Foundation uye CDR

PaThe Ocean Foundation, isu tiri Kunyanya kufarira CDR maererano nekudzoreredza hutano hwegungwa nekuwanda. Uye tinoedza kushanda nelenzi yezvakanakira gungwa nemugungwa siyana zvipenyu. 

Tinofanira kuyera kukuvadza kwekuchinja kwemamiriro ekunze kunyanza tichienzanisa nezvimwe zvatisingatarisiri zvezvakatipoteredza, zvakaenzana, kana kururamisira kubva kuCDR. Mushure mezvose, gungwa riri kutotambura kubva kukuvadza kwakawanda, kunoguma, kusanganisira kurodha epurasitiki, kusvibiswa kweruzha, uye pamusoro pekutorwa kwezviwanikwa. 

Fossil mafuta emahara simba chinhu chakakosha chinodiwa cheCDR tech. Nekudaro, kana mari yebhiri rezvivakwa ikaiswazve kune zero emissions yekusimudzira simba rekusimudzira, isu taizove nemukana uri nani wekurwisa kabhoni. Uye, kana imwe yemari yebhiri yakaendeswa kune yegungwa-centric nature-based solutions, taizove neCDR mhinduro dzatinotoziva kuchengeta kabhoni zvakajairika uye zvakachengeteka.

Munhoroondo yedu, takafuratira nemaune mhedzisiro yekuwedzera kwemabasa emaindasitiri pakutanga. Izvi zvakakonzera kusvibiswa kwemhepo nemvura. Uye zvakadaro, mumakore makumi mashanu apfuura, takashandisa mabhiriyoni ekuchenesa kusvibiswa uku uye tiri kugadzirira kushandisa mabhiriyoni akawanda kuderedza kubudiswa kweGHG. Hatingakwanise kufuratira mukana wemhedzisiro isingatarisirwe zvakare senzanga yepasi rose, kunyanya kana tave kuziva mutengo. Nemaitiro eCDR, tine mukana wekufunga zvine hungwaru, zvine hungwaru, uye zvakaenzana. Yasvika nguva yekuti tishandise simba iri pamwe chete.

Zvatiri Kuita

Pasi rese, takatsvaga mhinduro dzechisikigo dzeCDR dzinochengeta nekubvisa kabhoni ichidzivirira gungwa.

Kubva 2007, yedu Blue Resilience Initiative yakanangana nekudzoreredza uye kuchengetedza miti yemangrove, uswa hwegungwa, nemachakwi emvura ine munyu. Izvi zvinopa mikana yekudzoreredza kuwanda, kuvaka kusimba kwenharaunda, uye kuchengeta kabhoni pamwero. 

Muna 2019 na2020, takaedza kukohwa sargassum, kutora zvinokuvadza macro-algal maruva e sargassum uye kuishandura kuita fetiraiza inofambisa kabhoni yakatorwa kubva mumhepo kuti idzorere ivhu kabhoni. Gore rino, tiri kuunza muenzaniso uyu wezvekurima patsva muSt. Kitts.

Isu tiri nhengo yekutanga ye Ocean uye Climate Platform, vachikurudzira kuti vatungamiri venyika vatarise kuti gungwa riri kukuvadzwa sei nekuvhiringwa kwedu kwemamiriro ekunze. Tiri kushanda neAspen Institute's Ocean CDR Discussion Group pa“Code of Conduct” yeCDR yemugungwa. Uye isu tiri shamwari ye Ocean Visions, nguva pfupi yadarika vachikurudzira kuvandudzwa kune yavo "Core Premises yeOcean Climate Alliance." 

Iye zvino inguva imwe chete munguva umo kudiwa kwekuita chimwe chinhu nezvekuchinja kwemamiriro ekunze kunomanikidza uye kwakakosha. Ngatinyatso dyara mari muchikamu chenzira dzeCDR dzemugungwa - mukutsvagisa, kusimudzira, uye kutumira - kuti tigone kugadzirisa shanduko yemamiriro ekunze pamwero unodiwa mumakumi emakore anotevera.

Hurukuro hwezvivakwa huripo hunopa mari yakakosha kumigwagwa, mabhiriji, uye kuvandudzwa kunodiwa kwezvivakwa zvemvura zvenyika yedu. Asi, inotarisa zvakanyanya pane sirivheri bullet mhinduro kana zvasvika kune zvakatipoteredza. Kurarama kwenzvimbo, kuchengetedzwa kwechikafu, uye kugadzikana kwemamiriro ekunze zvinoenderana nemhinduro dzemamiriro ekunze ekunze. Tinofanira kuisa pamberi pekudyara mune idzi mhinduro dzinoratidzwa kuti dzinoita, pane kutsausa zviwanikwa zvemari kumatekinoroji asina kuratidzwa.