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A record jump in carbon dioxide levels

A record jump in carbon dioxide levels

Update: 2025-11-25
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The average level of carbon dioxide in the Earth’s atmosphere had its largest one-year increase on record between 2023 and 2024. In 2024, the level reached 423.9 parts per million, an increase of 3.5 parts per million over the year before. The previous record jump was 3.3 parts per million in 2016. Modern measurements of carbon dioxide levels began in 1957.
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A record jump in carbon dioxide levels

A record jump in carbon dioxide levels

Randy Simon