Changes in CO2 Concentrations in the Last 50 Years

The table below lists the atmospheric CO2 concentration (ppm) in the given year.

Year 1870 1960 1970 1980 1990 1994 2000 2010
Concentration (ppm) 270 310 320 340 360 370 380 390

This data shows there has been a rapid increase in CO2 concentrations since the onset of industrialization.