[HN Gopher] Release of methane gas from the seafloor in the Sout...
       ___________________________________________________________________
        
       Release of methane gas from the seafloor in the Southern Hemisphere
        
       Author : iagovar
       Score  : 30 points
       Date   : 2020-09-02 21:42 UTC (1 hours ago)
        
 (HTM) web link (lnu.se)
 (TXT) w3m dump (lnu.se)
        
       | epicureanideal wrote:
       | Well at least the SpaceX Raptor engines won't be running out of
       | fuel anytime soon.
        
       | tda wrote:
       | I wonder if there is potential for enough methane hydrate turning
       | gaseous that it drives a top to bottom current, bringing warm
       | surface water to greater depths and thus creating a runaway
       | effect where the ocean would seem to be boiling violently from
       | all the methane being released. I had a nightmare about this the
       | other day after seeing the tundra pits, no idea if this is
       | remotely feasible
        
       | chrisweekly wrote:
       | Yikes.
       | 
       | "Gas hydrate is an ice-like substance formed by water and methane
       | at depths of several hundred metres at the bottom of our oceans
       | at high pressure and low temperatures. Methane is a potent
       | greenhouse gas, roughly 25 times more potent than carbon dioxide,
       | and it is estimated that methane frozen in these sediments
       | constitute the largest organic carbon reservoir on Earth. The
       | fact that methane gas has now started leaking out through gas
       | hydrate dissociation is not good news for the climate."
        
         | mattmanser wrote:
         | Yikes like the clathrate gun that turned out to be nonsense, or
         | yikes as in it's actually a threat? Not saying climate change
         | isn't something to be worried about, but this article doesn't
         | say if it'll release like 10% of yearly methane, or like
         | 0.00001% and Ketzer's just trying to pump his publication
         | count.
         | 
         | What I would really love to see is an indepedant website
         | ranking all the threats. How bad is global shipping vs leaving
         | your lights on? Or the clathrate gun vs burning oil fields? Or
         | recycling your plastic vs throwing your plastic shit in the
         | river in 3rd world countries?
        
           | renewiltord wrote:
           | The Clathrate Gun Hypothesis was falsified? I did not
           | realize. Do you happen to remember where you read that?
        
           | titzer wrote:
           | Are you referring to a specific clathrate gun or the concept
           | in general?
           | https://en.wikipedia.org/wiki/Clathrate_gun_hypothesis
           | summarizes a lot of research on this subject and doesn't give
           | me the impression that it's nonsense or "debunked".
           | Personally, I find it worrisome.
        
       | waiseristy wrote:
       | Do we have historic evidence of runaway methane induced warming?
       | It seems crazy that we are seeing these effects, but have
       | nothing(?) in the geological records of these cataclysmic events
        
         | titzer wrote:
         | Seafloor sediments have been implicated in the
         | https://en.wikipedia.org/wiki/Clathrate_gun_hypothesis.
        
         | [deleted]
        
       | cynusx wrote:
       | Time to release the moratorium on ocean fertilization?
        
       ___________________________________________________________________
       (page generated 2020-09-02 23:00 UTC)