Charles David Keeling (April 20, 1928 – June 20, 2005) was an American scientist whose recording of carbon dioxide at the Mauna Loa Observatory first alerted the world to the possibility of anthropogenic contribution to the "greenhouse effect" and global warming.
Charles David Keeling (20. travnja 1928. – 20. lipnja 2005.) je bio američki znanstvenik čija su očitanja ugljičnog dioksida u Mauna Loa Observatoryu po prvi puta upozorila svijet na ljudski doprinos efektu staklenika i globalnom zatopljenju.