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The Keeling Curve
How a young American scientist began the work that would show how our climate is changing. His name was Charles Keeling and he meticulously recorded levels of CO2 in the atmosphere. His wife Louise and son Ralph remember him.
Photo: John Giles/PA Wire
Last on
Sun 6 Jan 2013
01:50GMT
Βι¶ΉΤΌΕΔ World Service Online
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