Graphics Digital Data
Pieter P. Tans and Thomas J. Conway
The NOAA/CMDL flask data from Mauna Loa show an increase in the annual value from 325.31 parts per million (ppm) in 1970 to 373.04 ppm in 2002.
CITE AS: Tans, Pieter P. and T.J. Conway, 2005. Monthly Atmospheric CO2 Mixing Ratios from the NOAA CMDL Carbon Cycle Cooperative Global Air Sampling Network, 1968-2002. In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A.
NOAA CMDL monthly CO2 records | Trends Contents | CDIAC Home