Global atmospheric concentration of greenhouse gases continues to increase

Column-average concentrations from satellite measurements

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carbon dioxide methane

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Data: C3S/Obs4MIPs (v5.1) consolidated (2003–2024) and CAMS preliminary near real-time data (2025) from GOSAT-1. Spatial range: 60°S–60°N over land • Credit: C3S/CAMS/ECMWF/University of Bremen/SRON