A climate scientist measures CO₂ levels increasing by 2.5 ppm (parts per million) each year. If the level was 420 ppm in 2020, what will it be in 2035?

Tue, 05 May 2026 21:22:14 +0000

Climate Scientist Predicts CO₂ Levels Will Rise by 2.5 ppm Annually—Where Will We Be by 2035? In the ongoing battle against climate change, tracking atmospheric carbon dioxide (CO₂) levels is crucial. According to recent measurements by climate scientists, CO₂ concentrations continue to climb at a steady rate—approximately 2.5 parts per million (ppm) per year. This steady increase has significant implications for global temperatures, weather patterns, and long-term environmental sustainability. In 2020, measured CO₂ levels stood at 420 ppm—a stark rise from pre-industrial levels around 280 ppm, reflecting decades of human activity and fossil fuel emissions. But how high will CO₂ climb in the coming decades? ### The Projection: CO₂ Levels from 2020 to 2035