Vanhu vakagadzira 8.3 bhiriyoni matani epurasitiki.Pakazosvika 2050, kuchange kuine matani mabhiriyoni gumi nemaviri emarara epurasitiki pasi rose.
Maererano nekuongorora mu Journal Progress muScience, kubvira pakutanga 1950s, 8.3 bhiriyoni matani epurasitiki akagadzirwa nevanhu, mazhinji acho ave marara, ayo asingagoni kufuratirwa nekuti anoiswa mumarara kana akapararira mune zvakasikwa. zvakatipoteredza.
Chikwata ichi, chinotungamirirwa nevatsvakurudzi kubva kuYunivhesiti yeGeorgia, Yunivhesiti yeCalifornia, Santa Barbara uye Marine Education Association, yakatanga kuongorora kugadzirwa, kushandiswa uye kuguma kwezvinhu zvose zvepurasitiki pasi rose.Vatsvakurudzi vakaunganidza nhamba yedata pamusoro pekugadzirwa kweakasiyana maindasitiri resin, fibers uye additives, uye akabatanidza iyo data maererano nemhando uye kushandiswa kwezvigadzirwa.
Mamirioni ematani epurasitiki anopinda mumakungwa gore negore, achisvibisa makungwa, achirasira mahombekombe egungwa uye achiisa mhuka dzomusango mungozi.Zvimedu zvepurasitiki zvakawanikwa muvhu, mumhepo uye kunyange munzvimbo dziri kure kwazvo dzePasi, seAntarctica.Microplastics inodyiwawo nehove nezvimwe zvisikwa zvemugungwa, uko inopinda mucheni yezvokudya.
Data inoratidza kuti kugadzirwa kwepurasitiki yepasirese kwaive matani miriyoni maviri muna 1950 uye kwakawedzera kusvika 400 miriyoni matani muna 2015, iyo yakapfuura chero chinhu chakagadzirwa nevanhu kunze kwesimende nesimbi.
Chete 9% yezvakaraswa zvigadzirwa zvepurasitiki zvinodzokororwa, imwe 12% inopiswa, uye iyo yasara 79% inovigwa zvakadzika mumarara kana kuunganidzwa munzvimbo yechisikigo.Iko kumhanya kwekugadzirwa kwepurasitiki hakuratidzi zviratidzo zvekuderera.Zvinoenderana nemaitiro azvino, pachave neanosvika mabhiriyoni gumi nemaviri matani emarara epurasitiki munyika panosvika 2050.
Chikwata chakaona kuti hapana mhinduro yesirivha bullet yekudzikisa kusvibiswa kwepurasitiki pasi rose. Pane kudaro, shanduko inodiwa pane yese yekugovera cheni, ivo vakati, kubva mukugadzira mapurasitiki, kusvika kune pre-kushandiswa (inozivikanwa sekumusoro kwemvura) uye mushure mekushandisa (kudzokorodza). uye kushandisazve) kumisa kupararira kwekusvibiswa kwepurasitiki munzvimbo.
Nguva yekutumira: Nov-24-2022