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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 201301:50GMT
BBC World Service Online
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- Wed 2 Jan 201309:50GMTBBC World Service Online
- Wed 2 Jan 201312:50GMTBBC World Service Online
- Wed 2 Jan 201320:50GMTBBC World Service Online
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- Thu 3 Jan 201303:50GMTBBC World Service Online
- Sun 6 Jan 201301:50GMTBBC World Service Online
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