Man-made emissions of nitrous oxide (N₂O) are rapidly increasing globally and are predicted to pose a growing threat to Earth’s ozone layer. In the 1970s, it was discovered that N₂O in the upper atmosphere can trigger ozone-depleting reactions through its interaction with low-energy electrons. However, the full impact of this process on the ozone layer remains poorly understood. Man-made emissions of nitrous oxide (N₂O) are rapidly increasing globally and are predicted to pose a growing threat to Earth’s ozone layer. In the 1970s, it was discovered that N₂O in the upper atmosphere can trigger ozone-depleting reactions through its interaction with low-energy electrons. However, the full impact of this process on the ozone layer remains poorly understood. Earth Sciences Environment Phys.org – latest science and technology news stories