parts per million
Carbon Dioxide pollution is the primary reason the Earth is warming. The number you see here estimates the level of CO2 in the Earth´s atmosphere right now, based on monthly average.
In the 800,000 years before industrialization, the CO2 level hovered around 280 ppm. But the 20th century saw a sharp increase that continues today.
The CO2 level is now around 400 ppm. The danger zone? 450 ppm, which we may hit by 2040. Beyond that, the warming Earth and its inhabitants will likely experience extreme weather events, increased sea-level rise, and their consequent ecological and economic impacts.
11K years ago
1K years ago
AIRS Mid-Tropospheric CO2 (ppm)