Nitrous Oxide (N2O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century

被引:3415
作者
Ravishankara, A. R. [1 ]
Daniel, John S. [1 ]
Portmann, Robert W. [1 ]
机构
[1] NOAA, Div Chem Sci, Earth Syst Res Lab, Boulder, CO 80305 USA
关键词
STRATOSPHERIC OZONE; MIDLATITUDES; REDUCTION; EMISSIONS;
D O I
10.1126/science.1176985
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
By comparing the ozone depletion potential-weighted anthropogenic emissions of N2O with those of other ozone-depleting substances, we show that N2O emission currently is the single most important ozone-depleting emission and is expected to remain the largest throughout the 21st century. N2O is unregulated by the Montreal Protocol. Limiting future N2O emissions would enhance the recovery of the ozone layer from its depleted state and would also reduce the anthropogenic forcing of the climate system, representing a win-win for both ozone and climate.
引用
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页码:123 / 125
页数:3
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