this post was submitted on 12 Aug 2024
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Huge methane plume from Queensland coal mine explosion underlines case for rapid closure (reneweconomy.com.au)
submitted 1 month ago by silence7@slrpnk.net to c/australia@aussie.zone
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[–] No1@aussie.zone 1 points 4 weeks ago* (last edited 4 weeks ago) (1 children)

So when they finally close all the coal mines,

OK

and seal all the shafts and fill in all the pits, they’re also going to have to

Hmmm. Will they really? That's a cost with no revenue. I'd go bankrupt if I were a company.

go and cap the thousands upon thousands of boreholes because they’re a direct line to the remaining seams below, and they’ll basically vent forever.

I gas that seems more likely....

[–] dgriffith@aussie.zone 1 points 4 weeks ago (1 children)

They are forced by the state government to put aside money for future rehabilitation.

Something else to point out is that "huge methane plume" is actually methane that is always there. It's just that normally there is a huge amount of forced ventilation into (and subsequently out of) underground mines and while that is working this methane plume is diluted to much lower levels.

[–] No1@aussie.zone 1 points 4 weeks ago

They are forced by the state government to put aside money for future rehabilitation. Piles of money set aside frequently have a way of disappearing....

Something else to point out is that “huge methane plume” is actually methane that is always there. It’s just that normally there is a huge amount of forced ventilation into (and subsequently out of) underground mines and while that is working this methane plume is diluted to much lower levels.

Oh, my bad. I thought that the methane was kinda trapped underground with the coal and was released by mining/boring.