Global carbon dioxide levels near worrisome milestone

被引:209
作者
Monastersky, Richard
机构
关键词
D O I
10.1038/497013a
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Concentrations of greenhouse gas will soon surpass 400 parts per million at sentinel spot.
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页码:13 / 14
页数:2
相关论文
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[2]  
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