Coal seams can burn for thousands of years. Due to the lack of oxygen and the difficulty of fighting fires underground, they smoulder continuously. I would imagine this is the same principle, only with gas instead of coal.
This should probably be in found on the net.
__________________
I wake up in the morning more tired than before I slept
I get through cryin' and I'm sadder than before I wept
I get through thinkin' now, and the thoughts have left my head
I get through speakin' and I can't remember, not a word that I said
- Ben Harper, Show Me A Little Shame
|