Tides cause Arctic methane emissions

Tides cause Arctic methane emissions

The Arctic Ocean exudes massive amounts of methane, a gas that contributes to global warming, as large amounts of methane have been leaking in that region for thousands of years, and is vulnerable to increase as global warming increases.

This is indeed what has been observed over the past decades, with an increase in the amount of methane in the atmosphere.

Scientists have caused the increase in methane in the atmosphere to increase human activity, as well as other sources that cannot be limited to this increase, including those produced by the Arctic Ocean.

But how the Arctic emits that gas within the greenhouse gases has been a puzzle for scientists.

The Moon’s role
In a recent study, the results of which were published in “nature Communications”, scientists concluded that the Moon had a role to play in the process, causing tidal movements that are one of the great forces in nature that affect the shape of the coastline.

But the tide and the islands have another role to play in methane-intensive emissions in the Arctic Ocean.

According to a press release issued by the Center for Arctic Gas Hydrate, Environment and Climate on December 11, Andrea Plaza-Faverola, a participant in the study, said the study. They noted that there are “concentrations of methane gas in sediment that is only one meter from the ocean floor and that are affected by small pressure changes in the water columns (a term called for expression of the surface-to-bottom layers of water).”

The Butterfly effect
Vaverola adds, “carrot currents cause low water column pressure and thus increase methane emissions. By contrast, high tides mean high water column pressure, and thus that methane gas emissions have declined.”

In the following comments, the researcher Jochen Cognes said that “minor changes in pressure are the cause of releasing these large quantities of methane. This is, of course, the first time we have observed this phenomenon,” he said.

Rising sea levels may alter this effect, reducing gas emissions as well. Here, the question remains: Will rising sea levels following global warming offset, at least in part, the impact of temperature on methane emissions?

Vaverola answers that “Earth’s systems are intertwined. Our study tried to remove one of these interchanges, as the Moon causes tidal levels to vary, causing slight changes in pressure from the water layers. Thus, the water layer near the bottom will affect methane emissions.”


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