Questions tagged [methane]
The methane tag has no usage guidance.
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Convert methane emissions calculated with GWP100 to GWP20
Given a figure of 1 tonne of CO2e methane emissions, where the CO2e figure is calculated using the 100-year global warming potential, is it possible to do a straight conversion back to tonnes of ...
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How can combusted methane from landfill samples be quantified? [closed]
Background:
For my studies I'm wanting and attempting to make a landfill greenhouse gas emissions (GHG) model that predicts the amount of greenhouse gas equivalent emissions ($GHG_{eq}$ [tonnes/year]) ...
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Cluster of cow burps now mapped; which satellites contribute to GHGSat's high-resolution maps of ppb levels of methane emission? How do they do it?
CNN's April 30, 2022 Planet-warming emissions from cow burps have been seen from space begins:
The emissions were detected by environmental data company GHGSat's high-resolution satellites in ...
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If methane decays to $\small\sf{CO_2}$ in the atmosphere, shouldn't there be much more $\small\sf{CO_2}$?
I am trying to understand the atmospheric ppm data, specifically around how CH4 decays to CO2.
This data says 2017 CH4 is about 1850ppm, and 2017 CO2 is 402ppm increasing about 3ppm/year. (https://www....
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"Twelve people have stood on the moon, but only one person has been to the Gates of Hell." What Guinness World Record did George Kourounis receive?
In NPR's podcast and transcript For 50 years, 'The Gates Of Hell' crater has burned. Now officials want to put it out
NPR's Scott Simon speaks to George Kourounis, Royal Canadian Geographical Society'...
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How serious is the issue of vast quantities of methane release from an ice-free Arctic?
A bunch of climate scientists claim that humans will go extinct by 2026, when humanity crosses the major tipping point known as "Arctic Blue Ocean Event (BOE)".
According to the climate ...
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Are wetlands effective against climate change?
In the region where I live, there is a trend that conservation organizations are advocating the conservation and re-valuation of wetlands.
Aside from boosting biodiversity and providing other ...
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Hypothetically, in the near future, could gas hydrate pingos erupt?
Could gas hydrate pingos erupt? If so, how quickly? And how much CH4 could they release?
I'm sorry if the questions sounds silly. I'm new here and I don't know much about gas hydrates and oceanography....
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What potential geoengineering technologies could help a country "achieve its Paris (agreement) targets"?
CNN's China to expand weather modification program to cover area larger than India ends with the following sentence:
"While China has not yet shown signs of 'unilaterally' deploying ...
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What part does methane play in the process of producing biogas?
I should point out first that I don't know the first thing about environmental science, I study mathematics, and the reason I am asking this question is because I want to understand the processes ...
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Why are $\small\sf{CH_4}$ and $\small\sf{CO_2}$ levels coupled during the Pleistocene?
CH4 and CO2 levels show correlation throughout the Pleistocene:
Source: trustyetverify.wordpress.com
What are the reasons of this coupling?
user18590
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Ocean Greenhouse Gases Released by Meteorite Impact
A huge amount of $\small\mathsf{CO_2}$ 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....
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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 ...
user12525
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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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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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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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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 ...
user889
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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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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 ...
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