Imisinga yasolwandle ithwala izigidigidi zemfucumfucu yepulasitiki encane iye e-Arctic

Ngabantu abambalwa kangaka, umuntu angacabanga ukuthi i-Arctic izoba indawo engenapulasitiki, kodwa ucwaningo olusha lubonisa ukuthi lokho akukude kakhulu neqiniso.Abacwaningi abafunda i-Arctic Ocean bathola imfucumfucu yepulasitiki yonke indawo.NgokukaTatiana Schlossberg we-New York Times, amanzi ase-Arctic abonakala njengendawo yokulahla ipulasitiki entantayo nemisinga yasolwandle.
Ipulasitiki yatholwa ngo-2013 yithimba labacwaningi bamazwe ngamazwe ohambweni lwezinyanga ezinhlanu lokuzungeza umhlaba begibele umkhumbi wocwaningo i-Tara.Endleleni, bathatha amasampula amanzi olwandle ukuze baqaphe ukungcoliswa kwepulasitiki.Nakuba ukugxiliswa kwamapulasitiki ngokuvamile kwakuphansi, ayesendaweni ethile eGreenland nasenyakatho yoLwandle iBarents lapho ukugxila kwakuphezulu ngokungavamile.Bashicilela abakutholile kujenali ethi Science Advances.
Ipulasitiki ibonakala ihamba kancane eduze kwe-thermohaline gyre, umsinga “webhande lokuthutha” lasolwandle elithwala amanzi esuka e-Atlantic Ocean eya ezigxotsheni."IGreenland kanye noLwandle iBarents yiziphetho ezifile kuleli payipi elincanyana," kusho umlobi ocwaningayo oholayo u-Andrés Cozar Cabañas, umcwaningi waseNyuvesi yaseCadiz eSpain, esitatimendeni sabezindaba.
Abacwaningi balinganisela ukuthi inani eliphelele lepulasitiki esifundeni ngamakhulu amathani, ahlanganisa amakhulu ezinkulungwane zezingcezu ezincane ngekhilomitha lesikwele.Isilinganiso singaba sikhulu nakakhulu, kusho abacwaningi, njengoba kungenzeka ukuthi ipulasitiki iqoqwe phansi olwandle endaweni.
U-Eric van Sebille, umbhali kanye naye walolu cwaningo, utshele uRachel van Sebille kuThe Verge: “Nakuba ingxenye enkulu ye-Arctic ilungile, kuneBullseye, kukhona le ndawo eshisayo enamanzi angcoliswe kakhulu.”
Nakuba kungenakwenzeka ukuthi upulasitiki ulahlwe ngokuqondile oLwandle iBarents (umthombo wamanzi abandayo eqhwa phakathi kweScandinavia neRussia), isimo sepulasitiki esitholakele sisikisela ukuthi sekunesikhathi eside ukhona olwandle.
Izingcezwana zepulasitiki okungenzeka zibe ngamasentimitha noma izinyawo ngosayizi zibe bushelelezi lapho zichayeka elangeni, bese zihlukana zibe yizinhlayiyana ezincane nezincane, ekugcineni zenze lolu cezu lwepulasitiki olulingana nemilimitha, esilubiza nge-microplastic.”- UCarlos Duarte, kusho umlobi osebenza naye wocwaningo uChris Mooney weThe Washington Post.“Le nqubo ithatha iminyaka eminingana kuya emashumini eminyaka.Ngakho-ke uhlobo lwezinto esizibonayo ziphakamisa ukuthi zangena olwandle emashumini ambalwa eminyaka adlule.”
Ngokusho kukaSchlossberg, amathani ayizigidi ezingu-8 epulasitiki angena olwandle minyaka yonke, futhi namuhla amathani ayizigidi ezingu-110 epulasitiki anqwabelana emanzini omhlaba.Nakuba imfucumfucu yepulasitiki emanzini ase-Arctic ingaphansi kwephesenti elilodwa lawo wonke, uDuarte utshele uMuni ukuthi ukuqoqwa kwemfucumfucu yepulasitiki e-Arctic kusanda kuqala.Amashumi eminyaka epulasitiki avela empumalanga ye-US naseYurophu asasendleleni futhi azogcina e-Arctic.
Abacwaningi bathole ama-gyres amaningana angaphansi komhlaba olwandle lapho ama-microplastics evame ukunqwabelana.Okukhathazayo manje ukuthi i-Arctic izojoyina lolu hlu."Le ndawo iphelile, imisinga yasolwandle ishiya imfucumfucu phezulu," kusho omunye umbhali wocwaningo uMaria-Luise Pedrotti esitatimendeni sabezindaba."Kungenzeka ukuthi sibona kwakhiwa enye indawo yokulahla imfucumfucu eMhlabeni ngaphandle kokuqonda ngokugcwele ubungozi bezitshalo nezilwane zendawo."
Nakuba eminye imibono ye-pie-in-the-sky yokuhlanza imfucumfucu yasolwandle epulasitiki isacutshungulwa, ikakhulukazi iphrojekthi ye-Ocean Cleanup, abacwaningi baphetha ngokukhululwa kwabezindaba ukuthi isisombululo esingcono kakhulu ukusebenza kanzima ukuvimbela ukubonakala kwepulasitiki. kuqala.Olwandle.
UJason Daley ungumbhali waseMadison, eWisconsin ogxile emlandweni wemvelo, isayensi, ukuvakasha kanye nemvelo.Umsebenzi wakhe ushicilelwe ku-Discover, Popular Science, Outside, Men's Journal kanye nabanye omagazini.
© 2023 Smithsonian Magazine Isitatimende Sobumfihlo Inqubomgomo Yekhukhi Imigomo Yokusetshenziswa Yokukhangisa Isaziso Sobumfihlo Izilungiselelo zakho Zekhukhi


Isikhathi sokuthumela: May-25-2023