Questions tagged [methane]

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Ocean Greenhouse Gases Released by Meteorite Impact

A huge amount of CO2 is absorbed by the ocean and stored in the ocean, and methane is stored as clathrates. For every mega-meteorite or asteroid that impacts on land, two hit the sea. In a range of ...
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The origin of permafrost

Old permafrost is loaded with frozen vegetation. As it now melts, it is rotting and releasing methane. Doesn't that mean that it froze quickly, centuries ago, and stayed frozen until now? What ...
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Is it feasible to 'harvest' the Clathrates from the permafrost before they evaporate?

We can see that there are large buildups of methane clathrates in permafrost regions. Climate scientist James Hansen has predicted that the release of the permafrost methane clathrates could cause ...
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Is there evidence to suggest that the release of methane clathrates in permafrost regions will impact climate change?

We can see that there are large buildups of methane clathrates in permafrost regions. Climate scientist James Hansen has predicted that the release of the permafrost methane clathrates could cause ...
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Possible and probable source of Curiosity Rover's $\small\sf{CH_4}$ detection on Mars

Past week, NASA announced Curiosity Rover measured 21 ppbv of $\small\sf{CH_4}$ on Mars. This week, NASA's Curiosity Mars rover found a surprising result: the largest amount of methane ever ...
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60 views

What would be the extent of the feedback on climate of unattended deaths event?

Being given that decaying corpses will stop emitting digestive metane, but would release huge amount of methane during their decaying process, I was wondering if this could be considered among the ...
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Carbon Isotopic Ratio of Methane on Mars

I was wondering, if we measured the carbon isotopic ratio of methane on Mars and found that it was very negative (i.e. it contained more carbon-12 than carbon-13), would this provide definitive proof ...
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Methane in Martian Soil

Measurements taken by the Curiosity rover have detected minute amounts of methane in the Martian atmosphere. I was wondering, is it possible that greater amounts of methane are present beneath the ...
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334 views

In terms of the greenhouse effect, what is the Earth's heat capacity?

(Question moved from physics to earth science) Has the earth’s atmosphere reached an equilibrium at which the input radiation energy roughly equals its output, or is the output significantly lower ...
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Are fossil fuels really formed from fossils?

Hydrocarbons have been found in great abundance elsewhere in the solar system where there is unlikely to be evidence for life past or present. No fossils involved. Petroleum and natural gas wells ...
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Methane leaks from biogas

Lately, I have been thinking about biogas and the impact leaks might have on climate. Biogas is mostly methane, and we know that methane has a much higher global warming potential than $\sf{CO_2}$. ...
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131 views

Methane from fracking?

Methane has spiked sharply since 2014: BBC Methane surge needs 'urgent attention'. This coincides with a large increase in fracking. So I'm wondering if there could be a connection? I don't think ...
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449 views

Methane remote sensing?

I'm trying to compile a list of remote sensing (Earth observing satellite) instruments capable of detecting methane in the atmosphere or near surface of Earth. After some search I have found: ...
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What are the natural causes for methane formation?

Natural gas is mostly made of methane ($\ce{CH4}$). Methane can be produced as a result of microbes eating organic matter. But can it also be naturally formed without any assistance from organic ...
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What is meant by Global-warming Potential (GWP)?

I was under the impression GWP (global-warming potential) is the measure of a gas' impact on global warming, in comparison with CO2. E.g. methane has a GWP of 86 over 20 years - Wikipedia Comparing ...
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How much methane clathrates are buried in continental deposits?

Methane clathrates are solid clathrate compound (more specifically, a clathrate hydrate) in which a large amount of methane is trapped within a crystal structure of water, forming a solid similar ...
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Why do the Siberian methane craters have smooth vertical walls?

I expect most of you have heard of this by now. All the news is about whether or not they were formed by the release of methane, but it is also mysterious to me why this crater has jagged edges but ...
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97 views

Why are methane spectroscopic parameters harder to determine and relatively poorly known, compared to other Earth trace gases?

In atmospheric remote sensing of methane, a dominant source of error is the uncertainty in spectroscopic parameters. For example, in the retrieval algorithms described by Batchelor et al. (2009), the ...