Ka taƙaita labarin:  Duniya na iya shan wahala daga sauye-sauye a cikin daidaiton kwayoyin halittarta kwatankwacin waɗanda aka yi imanin sun shafe rabin dukkan rayuwa shekaru miliyan 200 da suka gabata. Wannan ya biyo bayan wani binciken Burtaniya da ya gano wani mummunan yanayi da ake kira'marine photic zone euxinia' ya faru ne a daya daga cikin tekun prehistoric. Wannan yana faruwa ne sa'ad da ruwan teku da rana take haskakawa ya zama babu iskar oxygen kuma hydrogen sulphide ya gurɓata shi. Rayuwar Triassic ta haɗu da ƙarshen ƙonewa a cikin yanayin greenhouse mai gudu, yana dumama tekuna cikin ɗumi mai ɗumi, a cewar wani sabon bincike. Hoton da ke hoton wani mai zane ne na abin da ya faru a cikin tekuna shekaru miliyan 200 da suka gabata. Marubutan binciken sun ji tsoron cewa duniya a yau na iya shan wahala irin wannan sakamakon. Hydrogen sulphide wani abu ne na ƙananan ƙwayoyin cuta waɗanda ke rayuwa ba tare da oxygen ba kuma yana da matukar guba ga yawancin sauran nau'ikan rayuwa. Marubutan binciken sun ji tsoron cewa duniya a yau za ta iya shan wahala irin wannan sakamakon da yawan iskar carbon dioxide da ake samu ta hanyar ƙona burbushin mai. Wata ƙungiya da Jami'ar Southampton ta jagoranta ta yi nazarin burbushin kwayoyin halitta da aka ɗauka daga duwatsu masu ɗorewa waɗanda aka fara tarawa a ƙasan arewa maso gabashin Tekun Panthalassic, wanda ke kewaye da nahiyar Pangea. A yanzu duwatsun sun bayyana a tsibirin Sarauniya Charlotte, kusa da gabar British Columbia, Kanada. Wata kungiya da Jami'ar Southampton ta jagoranta ta yi nazarin burbushin kwayoyin halitta da aka samo daga duwatsun da ke da tushe wanda aka fara tarawa a kasan arewa maso gabashin Tekun Panthalassic. A yanzu an fallasa duwatsun a tsibirin Sarauniya Charlotte, a gabar tekun British Columbia, Kanada. Masana sun gano alamun kwayoyin cuta wadanda suka sha wahala mai tsanani oxygen ƙarancin da hydrogen sulphide guba wanda zai yi da aka sa da m volcanic rifts a cikin duniya ta tectonic faranti. 'Kamar yadda tectonic plates suka motsa don karya Pangea, babban dutsen mai fitad da wuta zai iya fitar da carbon dioxide a cikin yanayi, wanda ke haifar da hauhawar yanayin zafi daga...
Adadin CO2 da ake fitarwa daga kona burbushin mai ya karu. Yanzu yana kama da matakan da aka saki daga rifts na volcanic a lokacin Triassic. Wannan ya haifar da mummunar yanayi da ake kira 'eucinia na yankin photic na teku' Wannan yana faruwa ne lokacin da ruwan teku ya zama ba shi da iskar oxygen.