According to an engineer involved in the project, the resulting rotting vegetation will "not only generate methane, but also hydrogen sulphide, ammonia and carbon dioxide".
On the other hand, if it's this thick it may generate enough methane to pay part of your storage fee.
Most ecological emissions of methane relate directly to methanogens generating methane in warm, moist soils as well as in the digestive tracts of certain animals.
A model landfill would probably generate enough methane to light and might very well accomplish the same goals you have in mind.
"A word I just made up to describe a kind of life we've never heard of that doesn't generate methane in its gut but eats people."
In the presence of carbon dioxide, however, serpentinitization may form either magnesite (MgCO) or generate methane (CH).
Waste deposition in landfills, which generate methane.
Because of the anaerobic conditions, fermentation processes take place, which ultimately generate carbon dioxide and methane.
Christmas in our house essentially involves my partner's mother generating enough methane during the Queens Speech to power a small town for a year.
It has crystalline guts, which explains the tinkling sound, and it floats because it generates methane.