Is methane a greenhouse gas?
AnswerYes
Methane traps heat in the atmosphere.
Science · Facts & stats
Methane facts & stats
7 fact-checked facts about methane, its chemistry and its role in climate, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
How do cows release most of their methane?
AnswerBy burping
Microbes in cow stomachs make methane that is mostly burped out.
Going deeper
Natural gas is odorless; which chemical is added so leaks can be smelled?
AnswerMercaptan
Mercaptans give gas its rotten-egg smell.
What produces methane in wetlands and rice paddies?
AnswerMicrobes
Methane-making microbes thrive in oxygen-poor mud.
Which moon of Saturn has lakes of liquid methane?
AnswerTitan
Titan has methane and ethane lakes on its surface.
Expert level
Which scientist identified methane in marsh gas in 1776?
AnswerAlessandro Volta
Volta collected gas bubbling from Lake Maggiore marshes.
What is the H-C-H bond angle in methane?
AnswerAbout 109.5 degrees
This is the tetrahedral bond angle.
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