Note: Readers have asked why there has been no stabilization in the measured levels of the greenhouse gas carbon dioxide in the atmosphere when reported emissions of CO2 have fallen. Scripps CO2 Group Director Ralph Keeling gave this response: Continue reading Why Has a Drop in Global CO2 Emissions Not Caused CO2 Levels in the Atmosphere to Stabilize?
Levels exceeded 409 parts per million for the first time in recorded history this month Continue reading Comment on Recent Record-Breaking CO2 Concentrations
Innovative and easy-to-use visualizations depicting aspects of climate change are available through the Keeling Curve website. Continue reading New Climate Visualization Links Added to Keeling Curve Site
CO2 levels increasing at a faster rate than before Continue reading Record Annual Increase of Carbon Dioxide Observed for 2015
On Nov. 5, 2015, we made an adjustment to the Scripps Mauna Loa CO2 record that has the effect of increasing concentrations we have reported since April 2015 Continue reading Measurement Note: An Adjustment to the Record
This short video produced by NOAA tells the story of how Charles David Keeling of Scripps Institution of Oceanography, UC San Diego, worked with scientists from the U.S. Weather Bureau and NOAA at NOAA’s Mauna Loa Observatory to create what is now an iconic record of carbon dioxide in our atmosphere. The measurements of carbon dioxide in the atmosphere taken from 1958 to the present have become the most widely recognized record of mankind’s impact on the Earth, linking rising levels of carbon dioxide from man’s burning of fossil fuels to the warming of the planet.
Leader of Keeling Curve measurement says temporary bump from El Niño could push atmospheric CO2 levels above symbolic threshold for good Continue reading Is This the Last Year Below 400?
Scripps Institution of Oceanography drew the world’s preeminent experts in the measurement of greenhouse gases Continue reading Greenhouse Gas Measurement Summit at Scripps
Scripps Oceanography lab monitoring atmospheric CO2 named National Historic Chemical Landmark
Continue reading American Chemical Society to Honor Keeling Curve in June 12 Ceremony
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.
Continue reading What Does This Number Mean?