The foram record includes a global warming event that provides a warning for our own times.
有孔虫身上的记录就包括了全球变暖事件，为我们这个时代敲响了警钟。
The study, published in the September issue of the Journal of the Geological Society, found that increasing CO2 levels caused foram diversity to fall from 24 species to only 4.
这项发表在《地质学会》杂志9月号的研究发现，二氧化碳含量增加导致有孔虫种类从24个物种减少到只有4种。
The study, published in the September issue of the Journal of the Geological Society, found that increasing CO2 levels caused foram diversity to fall from 24 species to only 4.
这项发表在《地质学会》杂志9月号的研究发现，二氧化碳含量增加导致有孔虫种类从24个物种减少到只有4种。
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