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Undersea Deposits of Frozen Methane Found

geoswan writes "The CBC is running a story about large deposits of Frozen methane off the coast of Vancouver Island . The deposits may be 850 meters deep. The story doesn't say how the methane came to be a solid. Pressure? The story doesn't address what technology could be used to mine these deposits, if the decision is made to develop these resources. The CBC showed pictures taken of the methane hydrate. Sure enough, it looked like a big snowbank. It is an environmentally sensitive area. So, how about it, should it be exploited?"

11 of 404 comments (clear)

  1. Bermuda Triangle by simetra · · Score: 5, Interesting

    I saw this on tv; there's butt-loads of solid methane on the sea floor in the Bermuda Triangle area. One theory of the vanishing planes is that the gas bubbles up to the surface and creates a big area of methane gas above the surface. The planes flew into the gas, and their engines ignited the gas, blowing them up. Possibly the same scenario with vanishing boats. I forget how the layer of solid methane got there, but apparently this is common in many places around the world.

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    1. Re:Bermuda Triangle by squaretorus · · Score: 5, Interesting

      Bermuda Info here relating to this:

      Gas hydrates are formed when gases are trapped, under pressure and at low temperature (as at the bottom of the ocean), and dissolved in a frozen liquid. In this case, the gases are natural methanes -- the gas we use to heat our homes. These frozen gas hydrates are stable until higher temperatures or lower pressures cause them to decompose (melt). This decomposition releases enormous amounts of trapped gas.

    2. Re:Bermuda Triangle by geoswan · · Score: 3, Interesting
      Here is a press release and some photos , and a background sidebar methane hydrate.

      Michael Whiticar, one of the principal researchers, was interviewed on CBC newsworld at noon today.

      In this interview he said that while there are other undersea methane hydrate ice in other parts of the world, this site is unique. If I heard him properly, its size dwarfed other sites. If I heard him properly, other sites are formed by biological activity, whereas this was due to the leaking of petroleum fractions.

  2. Not new by Anonymous Coward · · Score: 3, Interesting

    There's more of this stuff in the North Sea -- I've seen a cool film clip where a scientist takes a chunk of it and sets it on fire!

    However, the last time I heard of these deposits, some folks were worried that mining them would destabilise the mass, causing an uncontrolled release of ENORMOUS quantities of methane. Which would mean bad things for the environment, what with methane being a greenhouse gas, and all.

    ...by ENORMOUS, I mean quantities larger than gets released in decades of industrial/agricultural activity. Vast vast vast amounts.

  3. armageddon by jukal · · Score: 5, Interesting
    If you want to get another source to fuel your paranoia and fears, read how release of underwater frozen methane could cause armageddon :)

    "Has frozen methane ever been released before? 55 million years ago, 20% of the world's frozen methane reserves melted. This sparked cataclysmic changes in the atmosphere: global temperatures rose by 13 degrees Fahrenheit, melting the ice cps and forcing many species to extinction. 80% of all deep-sea creatures became extinct, and there were severe consequences for land animals. If vast amounts of methane were released, the highly explosive gas would be ignited by lightning, scorching huge area in a fiery hell-on-earth."

    Now, do you want them to touch it? :))

  4. Mother of Storms by John Barnes by stereoroid · · Score: 4, Interesting

    This is a SF novel from 1994 which covers exactly this scenario. The long-term effects of global warming include the melting of the ice caps, as we know, but this book is about the shorter-term effects. An overall rise in the sea temperature, due to a huge release of clathrate methane, enlarges the hurricane-spawing areas of the ocean (areas above 27C). The result is larger and larger hurricanes, until, well, you can guess the rest from the title.

    Reviews: here and here.

    Ouch. Do you still want to touch those deposits?

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  5. Re:How it formed by Safety+Cap · · Score: 4, Interesting
    until someone comes up with unbiased scientific study all the academics and industries can agree with
    Nice straw man argument.

    I challenge you to find ANY study that "all the academics and industries can agree with." Doesn't have to be earth-shattering or anything. Just one. In a real (printed) journal. Go on, we'll wait...

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    Yeah, right.
  6. Re:CO_2 by Lumpy · · Score: 3, Interesting

    People should concentrate on using solar power, wind energy,

    Solar = destroy you planet faster... The process for making silicon solar cells is very very VERY nasty and pollutes worse than dumping raw gasoline directly into a lake (Which by the way 1 gallon of gasoline will pollute 1,000,000 gallons of water to undrinkable levels) as for wind power, you need to get the idiots and morons who sit on boards of light and power, and city/county/state governments to pull their heads out of their butts long enough so that you dont have to spend a year fighting to get a tower erected to put your windmill up and THEN spend another year getting permission to tie into the electrical grid so that the excess power you create goes to benefit mankind.

    until people start voting in smart politicians we will be doomed that way.... and I have never EVER met a politican that wasn't as dumb as a stump, but though he was a genius...

    The only other resourse is to do gurella alternative power... you just do it and hook up without permission or permits... something that is happening quite alot lately... just pick up a copy of home power magazine.. or look at their website here

    and you can make your own high efficiency wind power generation systems from crap and junk from here

    but the absolute best thing to do is to figure out how to reduce consumption.. over-insulate your home.. change all lighting to compact flouresent... buy all appliances that are energy star compliant and at the very top of the efficiency graph. (Note: instead of spending $45,000.00 onm your beloved yukon that get's 4-12 miles per gallon... buy an aztek WITHOUT 4wd that get's on average 25-27 Miles per gallon if you need big for carrying things... or get a honda insight for the highest fuel efficiency.)

    I agree, america = spend BIG and screw everyone else.. I live here.. I watch the masses of idiots who refuse to obey the speed limits and further reduce the MPG of their gas guzzlers, still throw trash out the windows and leave their homes with every light in the house on. It wont change until it's required, or energy gest's so expensive that it forces people to change... as they will not change willingly it must be forced.

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  7. Methane Hydrates by practical007 · · Score: 3, Interesting

    Methane is hydrophyllic under certain pressure and temperature regimes. It can easily form a slushy substance known as methane hydrates. These are not only a resource, but commonly a production problem in deepwater (5000') offshore environments where flowing temperatures are low. They can form in lines and plug things up. I am doing an undergrad project on these and I have friends doing grad work on them as well. It's neat stuff, and the vast quantities mean a tremendous future for good ole clean burning natural gas. Wanna see something really amazing? Check out the methane resources beleived to be associated with geothermal brines.

  8. Um. Why? by Agermain · · Score: 4, Interesting

    We have plenty of methane that doesn't even need to be mined. Most public landfills have to vent methane properly to prevent explosions. With the right business model, I'm sure state & local governments could use income from selling off methane to be refined into an energy source Hell, even the EPA supports this course of action. Why bother with underwater mining, when it's practically in our own backyards?

  9. weighted tax by phriedom · · Score: 3, Interesting

    "I'd like to see a weighted tax on fuel consumption and emission rate."

    Actually those substantial gasoline taxes are a weighted tax on consumption and emission.

    What I would prefer to see, as a midsized-car driver who is tired of seeing giant trucks with their bumpers at my eye level, is a different, more expensive, more strict drivers license for vehicles over something like 4600 pounds. Some people need big trucks that can tow and carry things, and they should be able to get them, but I want it to be inconvenient to use one for commuting. And a fedral regulation to lower the bumper height of new cars and trucks would be nice too. As it is, trucks are far too deadly to other vehicles on the road. The sad thing is that all the safety "advantages" of a big truck go away when everyone else has one too, and leaves the streets less safe on the whole.

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