Global Surge in Nitrous Oxide Emissions: Alarming Trend Revealed

A new report by the Global Carbon Project highlights a 40% increase in nitrous oxide emissions from 1980 to 2020. China leads in emissions, followed by India and the US. The report stresses the urgent need to reduce these emissions to combat climate change as nitrous oxide significantly contributes to global warming.

A startling new report from the Global Carbon Project reveals a 40% surge in nitrous oxide (N2O) emissions between 1980 and 2020. The findings indicate that China is the largest emitter, followed closely by India and the US.

The report underscores that 74% of these emissions in the last decade have originated from the extensive use of nitrogen fertilizers and animal manure in agriculture.

Notably, nitrous oxide is the third most significant greenhouse gas, 273 times more potent than carbon dioxide over a century. Its increasing concentration has already contributed to raising Earth's average surface temperature.

In 2022, atmospheric levels of nitrous oxide reached unprecedented heights, 25% higher than those recorded between 1850 and 1900. This rise far exceeds predictions by the Intergovernmental Panel on Climate Change.

With agricultural emissions skyrocketing, scientists warn that to keep global temperature rise below 2 degrees Celsius — the threshold set by the Paris Agreement — nitrous oxide emissions from human activities must decrease by at least 20% from 2019 levels by 2050.

Lead author Hanqin Tian from Boston College stressed that reducing nitrous oxide emissions is crucial, as no current technologies can remove the gas from the atmosphere.

The study also highlights the alarming increase in the use of nitrogen fertilizers and animal manure, which together contributed 208 million metric tonnes in 2020 alone.

The relentless rise in this potent greenhouse gas poses severe risks, urging immediate global action.