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What Does This Number Mean?

In Measurement Notes by Rob Monroe

Repost of April 2013 entry The Mauna Loa carbon dioxide (CO2) record, also known as the “Keeling Curve,” is the world’s longest unbroken record of atmospheric carbon dioxide concentrations.  

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How are CO2 Data Processed?

In Measurement Notes by Rob Monroe

Scientists make CO2 measurements in remote locations to obtain air that is representative of a large volume of Earth’s atmosphere and relatively free from local influences that could skew readings.