Sentences with phrase «methane degassing»

On catastrophic methane degassing: Shakova and Semiletov have proposed a mechanism — the destabilisation of the permafrost cap overlying large methane hydrate deposits that contain a high proportion of free gas.

[Response: Not to belittle the concern, but this methane degassing would probably take place on a time scale which is longer than the methane lifetime.

Such a strong acceleration of methane degassing from the Arctic would result in measurably higher concentrations of methane in the high northern latitudes.

The models of destabilization are largely based on variants of diffusive heat transport, but the state of understanding of slope avalanches and other more exotic release mechanisms is rather poor — and even if it turns out that rapid methane degassing isn't in the cards, you still do have to worry about those several trillion metric tons of near - surface carbon and how secure they are.

Not exact matches

Others are a-biological, such as ocean degassing from the lower solubility of CO2 in warm versus cool water and also melting of methane clathrates (ice with trapped methane, which is more potent than CO2 as a greenhouse gas.

For example, an aerating weir at Petit Saut reservoir was installed to optimize CH4 degassing immediately below the dam to avoid problems associated with methane - oxidation - induced hypoxia (Abril et al. 2005).