Nitrous oxide, a greenhouse gas, is on the rise: study

Most of us know nitrous oxide as “laughing gas,” used for its anaesthetic effects. But nitrous oxide (N2O) is actually the third most important long-lived greenhouse gas, after carbon dioxide (CO2) and methane. Nitrous oxide is also one of the main stratospheric ozone depleting substances— and we are releasing more of it into the atmosphere than previously thought, according to a new study published this week in Nature Climate Change.

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