MEASUREMENTS OF ATMOSPHERIC CARBON DIOXIDE FROM MAUNA LOA, HAWAII
FIGURE 14.15 Charles David Keeling began making measurements of carbon dioxide on Mauna Loa in 1958, and those measurements have continued to the present. The result was the Keeling Curve, showing for the first time that atmospheric carbon dioxide concentrations were indeed increasing, as Svante Arrhenius in 1896 predicted they would. This longest continuous record of atmospheric CO2 has provided innumerable insights into the global carbon cycle and how humans may be affecting Earth’s atmosphere. (Data from the Earth System Research Laboratory of NOAA)
(UC San Diego Library)