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Introduction

This web site serves both as a tribute to Charles David Keeling, who was the first person to document the rise in Carbon Dioxide concentration, and provides access to products of the Scripps CO2 Program based at the Scripps Institution of Oceanography in La Jolla, California. Current results, including data sets and graphics, are available here from the ongoing program to measure CO2 and chemical species.

The Scripps CO2 program was initiated in 1956 by Charles David Keeling and operated under his direction until his passing in 2005. It is currently being continued by Ralph F. Keeling, who also runs a parallel program at SIO to measure changes in atmospheric O2 and Ar abundances (Scripps O2 Program ).