carbon dioxide

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.

Tropical rainforests are home to millions of species, and in a healthy state they take up vast quantities of planet-warming carbon dioxide, helping to keep the Earth cool.

From BBC • Apr. 29, 2026

The Clean Power Plan would have required states and energy companies to shift electricity production from higher-emitting to lower-emitting production methods to reduce carbon dioxide emissions.

From Salon • Apr. 25, 2026

According to the National Oceanic and Atmospheric Administration, carbon dioxide averaged 425 parts per million in 2025, while methane reached 1,935 parts per billion.

From Science Daily • Apr. 24, 2026

Methane and oxygen, for example, would normally react with each other, forming carbon dioxide and water.

From The Wall Street Journal • Apr. 23, 2026

Once hordes of visitors tramped through the cave, however, moisture and carbon dioxide accumulated underground, and fungi crept up the cave walls, concealing the images.

From "The Annotated Mona Lisa" by Carol Strickland and John Boswell