Nitrous oxide, a powerful greenhouse gas, is on the rise from ocean dead zones: Nitrous oxide, more commonly known as “laughing gas,” is a potent greenhouse gas, 300 times more powerful than carbon dioxide. Global emissions of N2O are increasing as a result of human activities that stimulate its production.
N2O hotspots

The oceans currently account for around 25 per cent of global N2O emissions, and scientists are working to improve estimates of marine contributions. Most research has focused on oxygen minimum zones, which are known as hotspots of N2O emissions.

Warming of the ocean due to climate change is driving the expansion of marine oxygen minimum zones globally. This has led to speculation that N2O emissions from the oceans will continue to increase and further accelerate climate change. Our results indicate that even more N2O production may be expected where these low-oxygen waters are in contact with the seafloor.

Nitrous oxide, a powerful greenhouse gas, is on the rise from ocean dead zones: Nitrous oxide, more commonly known as “laughing gas,” is a potent greenhouse gas, 300 times more powerful than carbon dioxide. Global emissions of N2O are increasing as a result of human activities that stimulate its production.N2O hotspotsThe oceans currently account for around 25 per cent of global N2O emissions, and scientists are working to improve estimates of marine contributions. Most research has focused on oxygen minimum zones, which are known as hotspots of N2O emissions.Warming of the ocean due to climate change is driving the expansion of marine oxygen minimum zones globally. This has led to speculation that N2O emissions from the oceans will continue to increase and further accelerate climate change. Our results indicate that even more N2O production may be expected where these low-oxygen waters are in contact with the seafloor.Read More