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Definitions

methane

[meth-eyn, mee-theyn] / ˈmɛθ eɪn, ˈmi θeɪn /
NOUN
marsh gas
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The primary component of natural gas is methane, which, when burned, releases CO2 -- the leading greenhouse gas responsible for global warming.

From Barron's • Mar. 27, 2026

However the increase in concentrations of heat-trapping greenhouse gases -- carbon dioxide, methane and nitrous oxide -- "to their highest level in at least 800,000 years" has "upset this equilibrium", the WMO said.

From Barron's • Mar. 23, 2026

Capterio, a satellite-data company, monitors the burning of unwanted natural gas at energy infrastructure, known as methane flaring.

From The Wall Street Journal • Mar. 19, 2026

But excessive tonnages of carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride are changing Earth’s climate.

From The Wall Street Journal • Feb. 24, 2026

It was the microbes that created methane—the farts—and methane was a greenhouse gas that trapped heat inside the atmosphere, making the earth hotter.

From "Two Degrees" by Alan Gratz