China Begins Work on World's First Deep-Sea Manned Submarine Laboratory
#ChinaDeepSeaLab #ColdSpringResearch #MethaneHydrate #DeepSeaExploration #OceanPower #MarineScience #UnderwaterLab #DeepSeaResources #CombustibleIce #DeepSeaTech #ExtremeEnvironment #SeabedResearch #Oceanology #MarineEcosystem #DeepCarbonCycle
China Begins Work on World's First Deep-Sea Manned Submarine Laboratory
#ChinaDeepSeaLab #ColdSpringResearch #MethaneHydrate #DeepSeaExploration #OceanPower #MarineScience #UnderwaterLab #DeepSeaResources #CombustibleIce #DeepSeaTech #ExtremeEnvironment #SeabedResearch #Oceanology #MarineEcosystem #DeepCarbonCycle
#Methane time bomb? No!
"It should be highlighted that the destabilization of methane hydrates and the release of that methane to the overlying ocean does not necessarily mean that methane will vent to the atmosphere catastrophically.” The gas release could be significant over geologic timescales, Kessler says, but slow compared to humanity’s rapid, extensive release of greenhouse gases."
https://phys.org/news/2023-12-fire-ice-climate-methane-deep-ocean.html
#methanehydrate, also known as fire-ice, is an ice-like structure found buried in the ocean floor that contains #methane. Vast amounts of methane are stored as marine methane under oceans. It thaws when the oceans warm, releasing methane into oceans and the atmosphere—known as dissociated methane—contributing to global warming.
The scientists…identified a specific case where dissociated methane migrated over 40km and was released…during past warm periods.
A Spectacular Dive At Southern Hydrate Ridge https://interactiveoceans.washington.edu/09/2023/leg-2-ends-with-a-spectacular-dive-at-southern-hydrate-ridge/ #DeepSea
"#SouthernHydrateRidge is a highly dynamic environment with multiple sites where #methane gas bubbles are issuing from the seafloor, derived from #MethaneHydrate in the subsurface... free methane gas issues from the #seafloor as bubble plumes... Here, the CH4 is oxidized by #microbes, creating a highly biologically productive environment as evidenced by swarms of #krill and larger #fish"
@dave_von_s @pauleric_70 Thanks for that source of information.
It does say:
Scientists therefore fear that large quantities of methane hydrate will melt there in the future, releasing increased amounts of CO2 into the ocean and the atmosphere.
So there's no relevant risk of extra methane in the atmosphere because of #seabed #methanehydrate.
Therefor depecting methane rising up in methane bubbles is false.
Also stability has a lot to do with pressure in the sea.
@pauleric_70 The argumentation of the blog is:
1. T in Ocean water is rising. That's true
2. It will lead to #methane plumes from #methanehydrate
second point is not true: Leading #science articles refute this.
So the author should explain why other articles are wrong or how these arguments can both exists and be true.
Also author does not explain how much methane would leak. This is a second weak point.
The argument that higher #seatemperature leads to #methaneplumes is moot
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