Geoscience Reference
In-Depth Information
The Keeling Curve, 1951- 71. The 1964 gap in the monthly measurements reflects
three months when Keeling did not have the funds to continue the Mauna Loa
measurements. Source: William H. Matthews, William W. Kellogg, and G. D.
Robinson, eds.,
Man's Impact on the Climate
, figure 8.11, page 234, © 1971 Massa-
chusetts Institute of Technology, by permission of the MIT Press.
