The process of collecting and analyzing air samples for their CO2 content is demonstrated at Scripps Institution of Oceanography at UC San Diego. Scripps geophysicist Ralph Keeling demonstrates the use of evaccuated glass flasks which are opened to allow intake of air. Later flasks are affixed to analysis instruments that isolate the carbon dioxide within the samples. Other photo locations are Ritter Hall, which houses an analysis device called a manometer invented by Keeling's father, Charles David Keeling, and Ralph Keeling's lab in Vaughan Hall on the Scripps campus.