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Nitrous oxide human emissions increased 30% in 36 yrs: Report - Akshit Sangomla

-Down to Earth

43% of total emissions of nitrous oxide, a greenhouse gas 300 times more potent than carbon dioxide, came from human sources, the report said

Human emissions of nitrous oxide (N2O) — a greenhouse gas 300 times more potent than carbon dioxide (CO2) — increased by 30 per cent between 1980 and 2016, according to a research paper published in Nature October 7, 2020.

Nitrous oxide is a dangerous gas for the sustainable existence of humans on Earth. It has the third-highest concentration — after CO2 and methane — in our atmosphere among greenhouse gases responsible for global warming.

N2O can live in the atmosphere for up to 125 years.

Its global concentration levels increased from 270 parts per billion (ppb) in 1750 to 331 ppb in 2018 — a jump of 20 per cent. The growth has been the quickest in the past five decades because of human emissions.

The research was conducted through an international collaboration between the International Nitrogen Initiative (INI) and the Global Carbon Project of Future Earth, a partner of the World Climate Research Programme. It involved 57 scientists from 48 institutions in 14 countries.

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