| Source | CBS Local |
|---|---|
| Original Load Date | Oct. 27, 2026, 11:01 a.m. |
| Last Updated | Oct. 27, 2026, 11:01 a.m. |
| Original URL | https://www.cbsnews.com/chicago/news/greenhouse-gas-levels-records-again-2025-un/ |
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_Geneva_ — Greenhouse gas concentrations in the atmosphere rose to record highs
in 2025, locking in [ climate ][23] impacts that will persist for centuries,
the United Nations said on Tuesday.
Levels of the three main greenhouse gases -- the climate-warming carbon dioxide,
methane and nitrous oxid...