Peak carbon dioxide levels surpass 411 parts per million for May
American Chemical Society to Honor Keeling Curve in June 12 Ceremony
Scripps Oceanography lab monitoring atmospheric CO2 named National Historic Chemical Landmark
A note on recent readings
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?
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.
Why are Seasonal CO2 Fluctuations Strongest at Northern Latitudes?
The farther north a CO2 reading is made, the wider it swings with the seasons
Why Daily Readings are Sometimes Unavailable
Many readers noticed that there were several days without readings recently.