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Earth Science

'Sleeping Giant' Arctic Methane Deposits Starting To Release, Scientists Find (theguardian.com) 280

An anonymous reader quotes a report from The Guardian: Scientists have found evidence that frozen methane deposits in the Arctic Ocean -- known as the "sleeping giants of the carbon cycle" -- have started to be released over a large area of the continental slope off the East Siberian coast, the Guardian can reveal. High levels of the potent greenhouse gas have been detected down to a depth of 350 meters in the Laptev Sea near Russia, prompting concern among researchers that a new climate feedback loop may have been triggered that could accelerate the pace of global heating.

The slope sediments in the Arctic contain a huge quantity of frozen methane and other gases -- known as hydrates. Methane has a warming effect 80 times stronger than carbon dioxide over 20 years. The United States Geological Survey has previously listed Arctic hydrate destabilization as one of four most serious scenarios for abrupt climate change. The international team onboard the Russian research ship R/V Akademik Keldysh said most of the bubbles were currently dissolving in the water but methane levels at the surface were four to eight times what would normally be expected and this was venting into the atmosphere. The scientists -- who are part of a multi-year International Shelf Study Expedition -- stressed their findings were preliminary. The scale of methane releases will not be confirmed until they return, analyze the data and have their studies published in a peer-reviewed journal. But the discovery of potentially destabilized slope frozen methane raises concerns that a new tipping point has been reached that could increase the speed of global heating.

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'Sleeping Giant' Arctic Methane Deposits Starting To Release, Scientists Find

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  • by Tablizer ( 95088 ) on Thursday October 29, 2020 @10:32PM (#60664602) Journal

    What fucker set the timer to leak in 2020?

  • That is really bad (Score:4, Insightful)

    by gweihir ( 88907 ) on Thursday October 29, 2020 @10:57PM (#60664630)

    If not completely unexpected. It is one of the accelerators.

    • by plate_o_shrimp ( 948271 ) on Thursday October 29, 2020 @11:06PM (#60664644)

      tl;dr: We're fucked

      • by sg_oneill ( 159032 ) on Friday October 30, 2020 @01:08AM (#60664882)

        Back when I was working w/ Forestry Department, that was the general consensus of most of the Climate Scientists. Unfortunately "Its probably too late, best we can hope to do is minimize the horribleness of what our species has done" tends to get your paper squashed by the conservative government in charge of the department.

        • by gweihir ( 88907 )

          Thus making the problem worse. My take is that civilization is already reliably done for, the only question is will the human race survive and what will it still be able to do after if it survives. Does not look good.

          • by sarren1901 ( 5415506 ) on Friday October 30, 2020 @11:21AM (#60666110)

            Sure the human race will survive. Just not billions of us. Clearly we are overpopulated but that's a really unpopular idea so we don't like to talk about it.

            Also, our government doesn't understand sustainability, just growth, so we constantly need to increase population to keep all the schemes going. If we focused on sustainability instead of growth, it would be perfectly fine to have a low birth rate but when you constantly need growth you run into these problems.

            This is why, despite middle class America having a low birthrate, we make it up with all the immigration the republicans pretend is a problem. See, business (both parties) love cheap labor and both parties love to use the immigrant as a talking point. Dems like to go on about the poor immigrants and the republicans like to talk about those murdering job stealers that don't pay taxes.

            It's all a bunch of shit.

            The world clearly cannot sustain 7 billion people and growing.

      • by HiThere ( 15173 )

        All of the decent models should already include this as a factor. What this is clarifying is the timing.

      • by gweihir ( 88907 )

        tl;dr: We're fucked

        Pretty much. And this has been reliably known for a decade or two. This installment of the human race does really not deserve to survive.

    • by nagora ( 177841 )

      If not completely unexpected.

      That's putting it mildly; I watched a documentary about the potential for this when I was still in school in the 80's.

      • by gweihir ( 88907 )

        If not completely unexpected.

        That's putting it mildly; I watched a documentary about the potential for this when I was still in school in the 80's.

        Indeed. This has been known in the 1980's. What has not been known back then is that the human race would be completely incapable to even recognize the upcoming catastrophe, despite hard scientific evidence being available 30 years back. And look at all the idiots here that still do not get that it is now far too late to prevent giga-death and global collapse.

        • Never underestimate the cruelty of rich people holding onto a income stream when faced with the resulting deaths of millions of people

          The fossil fuel industries COULD have re-invested in nuclear power, spent their billions of propaganda dollar convincing people that it was safe and we would not be here now

          Instead they decided to double down on fossil fuels, pay scientists to put forward false proposals to deny warming and pay of politicians to kil any proposals to reduce carbon emissions

          They could have been

    • And to add to how bad that is... I just learned the other day about another threat caused by warming. Increased fungal infections.

      Basically, fungus doesn't like heat (I guess, it's similar to how bacteria doesn't like antibiotics). This is why they think we evolved to be warm blooded - to keep away fungal infections. But if the atmospheric temperatures are increasing and naturally selecting for fungus that is more resistant to higher temperatures, we'll eventually get some that can handle our internal
    • If you look at the science (physics, in this case), you will see that the absorbtion spectrum for methane is quite narrow, and its bands are "covered" by the bands for water vapor: i.e., in order to judge the greenhouse effectiveness of methane you must only apply it after the effects of water vapor have been applied -- a case in which the effective absorbtion is quite small.
      • by gweihir ( 88907 )

        Yeah, I am sure we will be all right, lets just ignore the problem a while longer! So far the human race has always survived, after all.

        Problem is, it just takes one extinction event. You cannot acquire experience with them. Either you predict them and do something effective or that was it. The human race seems to collectively have opted for the second choice.

  • methane production (Score:5, Informative)

    by WindBourne ( 631190 ) on Thursday October 29, 2020 @11:31PM (#60664694) Journal
    Tried to submit this the other day, but Caffeinated Bacon called it spam so as to kill it. [ghgsat.com]
    This satellite map shows that China and India remains the massive methane production, however, unless northern nations are drilling and we do not know about it, there is a LOT of methane coming up in the arctic circle. This is NOT GOOD. And no doubt, the north pole, and perhaps the south pole, will end up over taking India and China as being the major methane.

    This really should concern anybody that cares about AGW.
    • by Gavrielkay ( 1819320 ) on Thursday October 29, 2020 @11:54PM (#60664724)
      It's not blaming America to suggest we can do better. If we put the time and research into green technologies we might make breakthroughs that we can sell to the rest of the world and then it's an economic win too. Sitting around saying everyone else is polluting too isn't going to help anyone.
  • This is happening in the Arctic Ocean too, several years ago I saw pictures of boiling water from the arctic because of Methane hydrates, this is Not new, I don't know who really believes that, and I doubt the scientists really do either. We've known for several years the Permafrost in Siberia and Alaska(probably Canada too) that it's been Rotting. We even found a dead caveman remember with a knife wound, when it started rotting a decade ago. And Methane is a much worse greenhouse gas than CO2 like 10x w
  • Tipping points (Score:4, Informative)

    by NoNonAlphaCharsHere ( 2201864 ) on Friday October 30, 2020 @12:40AM (#60664828)
    Well, looks like we're past "tipping points" territory, and moved into full-on "done tipped" territory.
  • have a lighter?
  • Alas, all of my old posts have been disappeared.
  • At least the Ice Age is finally over.

  • Excellent! My plans for global destruction are right on schedule. All I have to do is watch.
  • There are some serious credibility problems with this:

    https://twitter.com/DoctorVive... [twitter.com]

    Though the fact that climate scientists who are firm believers in anthropogenic climate change are willing to push back against claims, even when they could support their overall position, is good evidence that only one side of the climate change debate is operating in good faith. Meanwhile, climate change deniers will seize upon anything uncritically that they think supports their argument.

The truth of a proposition has nothing to do with its credibility. And vice versa.

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