June 2011

American Physical Society (APS) adds Scripps Institution of Oceanography to its register of historic sites for the work that began there that came to be known as the Keeling Curve. A plaque is mounted at Ritter Hall, the building housing many of the original instruments Keeling invented to make ultraprecise measurements of atmospheric carbon dioxide concentrations beginning in 1957.

Timeline Year: 
2011
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Timeline Month: 
6