Nitrous Oxide Emission in the Atmosphere

Dear Colleagues,

Nitrous oxide (N₂O) is one of the dominant anthropogenic greenhouse gases, with a global warming potential nearly 300 times higher than that of CO₂; in addition, it is the most important contributor to stratospheric ozone destruction emitted in the 21st century. The mole fraction of tropospheric N₂O has increased from 270 ppb in preindustrial times to the current level of over 330 ppb—particularly concerning is a recent acceleration in the growth rate over the past 10–20 years. N₂O is long-lived, with an estimated lifetime of around 116 ± 9 years, and it is emitted from highly variable, disperse sources, which complicates the efforts to quantify the emission processes and develop effective mitigation strategies.

This Special Issue aims to bring together different perspectives on N₂O emissions at varying spatial and temporal scales. We, therefore, invite submissions on wide-ranging topics, such as microbial ecology and microscale N₂O emission processes, biogeochemical process modelling, innovative field measurements and isotopic techniques, long-term measurement series, inversion modelling, and the effects of climate change on N₂O emissions in the future. Taken together, the papers in this Special Issue will encourage an interdisciplinary view of N₂O in the atmosphere, to gain a snapshot of the current state of the art and facilitate future developments.

Dr. Eliza Harris
Guest Editor

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