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Harris, DC (2010). «Charles David Keeling and the story of atmospheric CO2 measurements». Analytical Chemistry. 82 (19): 7865–70. PMID20536268. doi:10.1021/ac1001492.
Heimann, M (2005). «Obituary: Charles David Keeling 1928–2005». Nature. 437 (7057): 331. PMID16163339. doi:10.1038/437331a.
Nemani, RR; Keeling, CD; Myneni (2003). «Climate-driven increases in global terrestrial net primary production from 1982 to 1999». Science. 300 (5625): 1560–3. PMID12791990. doi:10.1126/science.1082750.