Global atmospheric concentration of carbon dioxide by decade 1880-2018

This statistic represents the average level of carbon dioxide in the atmosphere worldwide between the 1880s and 2018. In 2015, the level of CO2 in the atmosphere surpassed 400 parts per million. Since the beginning of the first measurements in 1959, there has been a constant increase in concentration of CO2. In the early 1960s, the greenhouse gas rose about 0.7 parts per million per year. Over the last ten years, it has been rising at about 2 parts per million per year. Before the Industrial Revolution began in the 19th century, the global average level of carbon dioxide was around 280 parts per million.

The global per capita emissions of carbon dioxide can be found here.