A note on recent readings

Rob MonroeMeasurement Notes

In response to a recent reader comment about wide fluctuations in CO2 readings at Mauna Loa, Ralph Keeling and Stephen Walker of the Scripps CO2 Group gave the following answer: It’s fairly normal, especially in the summer time, to see strong afternoon “dips” in the CO2 concentration.  The dips are generally caused by upslope winds that that are depleted in … Read More

How are CO2 Data Processed?

Rob MonroeMeasurement Notes

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.