The Carbon Cycle - Introduction to Carbon Capture and Sequestration - page 109

(a) (b)

(c)

(d) (e)

Figure 3.2.3 Atmospheric CO 2 Levels
(a) Historical CO 2 levels in the atmosphere as measured at the Mauna Loa Observatory.
Figure from Dr. Pieter Tans, NOAA/ESRL and Dr. Ralph Keeling, Scripps Institution
of Oceanography [3.5].
(b) The data show the modulation of the CO 2 levels over a year. During the summer the
CO 2 levels are higher compared to the winter. Figure from Dr. Pieter Tans, NOAA/
ESRL and Dr. Ralph Keeling, Scripps Institution of Oceanography [3.5].
(c) Location of the Mauna Loa observatory in Hawaii. Map data from Google .
(d) Satellite picture of the island of Hawaii. Picture from Earth Sciences and Image
Analysis, NASA-Johnson Space Center .
(e) Mauna Loa Observatory. Photo by NOAA/ESRL/GMD .