marsh gas

I don’t read Swedish, so I’m unsure how to apportion credit for beautiful sentences, but they abound: Snide comments are “tiny puffs of marsh gas.”

The layer of muck had small holes all over it, where marsh gas breathed out.

This ‘marsh gas’ is methane, a greenhouse gas that is some 20 times more potent than carbon dioxide.

The simplest of these is methane, or marsh gas, which is formed in nature by the bacterial decomposition of organic matter under water.

It was subject to continual leaks and floods, and suffused with fetid marsh gases that would periodically combust, ignited by the gas lamps that lit the tunnel.