[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)