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- 亚马孙雨林变成二氧化碳排放的源头 (**发源地** is a positive phrase and I think a neutral phrase like **源头** is a better choice) Amazon 'flips' to be source of CO2 emissions 环境科学家发布了令人震惊的新闻:亚马孙雨林部分地区排放二氧化碳比吸收的更多。 Environmental scientists have revealed shocking news that parts of the Amazon rainforest are emitting more carbon dioxide than they are absorbing. 有科学家提出,该雨林每年产生大于十亿吨的二氧化碳。 The scientists said the forest is now producing over a billion tons of CO2 a year. 据他们所说,亚马孙雨林曾是个‘碳井’。 They say the Amazon used to be a carbon "sink". 在这里二氧化碳被吸收,并转换为氧气。 This is where CO2 was sucked up and converted into oxygen. 然而这里现在却成为了生产二氧化碳的源头。 However, it has now become a source of carbon dioxide. 这场雨林可能要失去它‘世界之肺’的称号了。 The forest is at risk of losing its moniker of being the lungs of the world. 研究者预计,未来这片雨林会以更快速度产生越来越多的二氧化碳。 Researchers are predicting the rainforest will create more CO2 at an accelerating rate in the future. 亚马孙‘碳井’转换为‘源头’可归因于集采,滥伐,以及越来越多的森林火灾。 The biggest culprits for the Amazon's flipping from sink to source are logging, deforestation and a growing number of forest fires. 学报《自然》公布了亚马孙二氧化碳排放的统计数据。 The research on the Amazon's CO2 emissions has been published in the journal "Nature". 研究者分析了六百个从2010年到2018年巴西亚马孙各地森林火灾产生的二氧化碳和一氧化碳标本。 Researchers analysed 600 profiles of CO2 and carbon monoxide emissions produced by fires at various sites in Brazil's Amazon between 2010 and 2018. 他们发现林火产生了大致十五亿吨二氧化碳,而森林生长只排出了不过五亿吨。 They found that the fires produced about 1.5 billion tons of CO2 a year, while forest growth removed just 0.5 billion tons. 研究者认为,其十亿吨的二氧化碳排量等同于日本,世界上大气污染排量第五的国家的年度排放量。 The researchers said the difference of one billion tons left in the atmosphere is equivalent to the annual emissions of Japan, which is the world's fifth-largest polluter. 伦敦大学学院教授西蒙-路易斯表示,”亚马孙东南部的’碳井’转换为’二氧化碳源头’的新闻是又一次严肃警告。它警告我们气候变化的进程正在加快.” Professor Simon Lewis, from University College London, said: "The south-east Amazon sink-to-source story is yet another stark warning that climate impacts are accelerating.0 votedJuly 17, 20212

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