Answer: METHANE
METHANE is a crossword puzzle answer that we have spotted 26 times.
Referring Clues:
- CH4
 - Marsh gas constituent
 - Natural gas constituent
 - Dangerous buildup in a mine
 - Marsh gas
 - Marsh gas, mostly
 - A greenhouse gas
 - Swamp gas, essentially
 - Coal mine product
 - Type of gas
 - Firedamp, for the most part
 - Flammable gas
 - Natural gas component
 - Greenhouse gas produced by cows
 - Gaseous fuel
 - It's a gas
 - Colorless flammable gas
 - Swamp gas, mostly
 - Gas formed by decomposition
 - Gas
 - Coal miner's concern
 - Marsh gas, mainly
 - Marsh gas, essentially
 - Flammable gas represented in 18-Across and 9-Down
 - Dairy farm product
 - Natural gas, mostly
 
Last Seen In:
- USA Today - June 07, 2023
 - New York Times - December 07, 2019
 - LA Times - November 16, 2019
 - New York Times - September 18, 2018
 - USA Today - July 18, 2018
 - King Syndicate - Premier Sunday - December 10, 2017
 - King Syndicate - Thomas Joseph - November 03, 2016
 - Universal - April 29, 2016
 - Universal - January 27, 2016
 - New York Times - October 11, 2015
 - New York Times - May 19, 2015
 - USA Today - January 08, 2015
 - King Syndicate - Eugene Sheffer - October 15, 2014
 - Universal - June 15, 2014
 - New York Times - December 23, 2013
 - USA Today - September 25, 2013
 - Washington Post - May 18, 2013
 - Washington Post - March 01, 2012
 - Onion A.V. Club - February 08, 2012
 - Post Puzzler - March 20, 2011
 
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