fossil fuels
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All fossil fuels produce carbon dioxide when burned. (See greenhouse effect.)
Burning fossil fuels is a main cause of air pollution.
All of these fuels were formed from the remains of plants and animals that lived millions of years ago.
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.
Its Prime Minister Feleti Teo has made clear that he believes "opening, subsidising and exporting fossil fuels is immoral and unacceptable".
From Barron's • May 28, 2026
Exxon prides itself on its ability to find and extract fossil fuels hidden deep in the earth’s crevices.
From The Wall Street Journal • May 28, 2026
According to the study, dependence on fossil fuels has temporarily hidden the effects of ecological overshoot by supporting food production, industrial growth, and energy supplies.
From Science Daily • May 27, 2026
These record-smashing heatwaves have come in a world about 1.4C warmer on average than during the late 19th Century, because of human activities such as the burning of fossil fuels.
From BBC • May 26, 2026
And like most factories, the industrial farm is powered with fossil fuels.
From "The Omnivore's Dilemma" by Michael Pollan
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
