World Meteorological Organization Reports Record Greenhouse Gases
Global greenhouse gas concentrations reached record highs in 2025 according to recent meteorological reporting.
Updated on Oct. 27, 2026 in Current Conditions
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The World Meteorological Organization confirmed that global concentrations of carbon dioxide, methane, and nitrous oxide climbed to record levels in 2025. Background levels of these gases observed in Korea consistently exceeded the global averages throughout the year.
Why it matters
Understanding greenhouse gas trajectories is vital for tracking climate change, though the carbon dioxide growth rate recently slowed as terrestrial carbon sinks recovered following the 2023-2024 El Niño.
In 2025, global atmospheric concentrations reached 426.8 ppm for carbon dioxide, 1,948 ppb for methane, and 339.1 ppb for nitrous oxide. Corresponding figures in Korea were higher, reaching 432.7 ppm, 2,023 ppb, and 340.6 ppb respectively.
The players
World Meteorological Organization
This is a specialized agency of the United Nations responsible for promoting international cooperation on atmospheric science and climatology.
Korea Meteorological Administration
This government agency is responsible for observing and reporting on the weather, climate, and atmosphere within the Republic of Korea.
The details
The Korea Meteorological Administration monitors these levels using arithmetic averages from observation stations at Anmyeondo, Jeju Gosan, and Ulleungdo. While carbon dioxide rose by 2.8 ppm globally, the growth rate tempered due to reduced wildfire emissions and recovered carbon sinks.
Timeline
Greenhouse gas observations have been continuously recorded by the KMA since 1999.
The 2023-2024 period was characterized by a strong El Niño event that influenced carbon sink activity.
Global greenhouse gas concentrations reached record highs throughout 2025.
Seasonal Patterns
Current greenhouse gas concentrations mark a significant departure from pre-industrial levels established in 1750. These atmospheric measurements provide a critical indicator of long-term climatic shifts when compared against historical records maintained since the late 20th century.
While these atmospheric changes occur on a global scale, residents can monitor local air quality reports provided by national meteorological agencies. Staying informed on regional climate data helps in understanding the broader environmental context of the area.
The takeaway
The record-high concentrations underscore the ongoing challenge of managing atmospheric greenhouse gas levels. Tracking these metrics remains essential for climate science as researchers analyze how natural carbon sinks respond to fluctuating weather patterns.
Further reading
For more information on current climate reporting, visit the Current Conditions section.
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Are you planning to change your personal energy habits due to rising global greenhouse gas levels?
