Scripps Institution of Oceanography, UC San Diego, Geochemist Ralph Keeling is interviewed for the video series “Climate Changers: Hot Lessons and Cool Solutions.” Continue reading Ralph Keeling on Crossing 400 in new State of California Video Interview
Tim Lueker, research scientist in the Scripps CO2 Research Group, only needs one sentence to explain why atmospheric CO2 peaks in May. Continue reading Why Does Atmospheric CO2 Peak in May?
So we’ve reached 400 ppm.… Now what happens? Continue reading Now What?
Readers may have noticed that the daily average baseline value for May 13, which was originally reported on May 14 as “Too Variable”, was subsequently changed on May 15 to a value of 400.17 parts per million (ppm). Continue reading Special note on May 13, 2013 reading
May 10 Comment:
NOAA has reported 400.03 for May 9, 2013, while Scripps has reported 399.73. The difference partly reflects Continue reading Special note on May 9, 2013 reading
Many readers noticed that there were several days without readings recently. Continue reading Why Daily Readings are Sometimes Unavailable
Carbon dioxide is a greenhouse gas produced by natural processes and everyday human activities, especially the burning of fossil fuels. The Keeling Curve is a measurement of the concentration of carbon dioxide in the atmosphere made atop Hawaii’s Mauna Loa since 1958. Continue reading The History of the Keeling Curve
This 2008 film made for the 50th anniversary of the Keeling Curve features interview footage with the measurement’s creator Charles David Keeling originally filmed for the 2004 Finnish documentary “The Venus Theory.”