Charles David Keeling began taking daily measurements of the Carbon Dioxide concentration in the atmosphere at the top of Mauna Loa in Hawaii in 1958 (Monroe). This program is still around; however, there are more locations around the world where data is collected (Monroe). He began this work while doing his doctoral studies in California. He noticed that there was more CO2 at night in Big Sur, and in the afternoons, there was almost always 310ppm (Monroe). He took measurements of atmospheric CO2 in multiple locations, and all found a concentration of 310 ppm until he went to Mauna Loa and found a concentration of 313 ppm (Monroe). The concentration continued to rise until May, when there began to be a decrease in atmospheric CO2 and then an increase back in October (Monroe). Keeling began to realize that the concentration of atmospheric CO2 was reliant on “seasonal changes of growth and decay” (Kennedy, 1). The data collected is now known as the Keeling Curve and is heavily used to monitor our atmospheric CO2.
Kennedy, Caitlyn. “Carbon Dioxide: Earth’s Hottest Topic Is Just Warming Up”. NOAA Climate, 2009, https://www.climate.gov/news-features/understanding-climate/carbon-dioxide-earths-hottest-topic-just-warming.
Monroe, Rob. “The History Of The Keeling Curve”. The Keeling Curve, 2022, https://keelingcurve.ucsd.edu/2013/04/03/the-history-of-the-keeling-curve/.
This is cool, with his measurements did he find any drastic changes in the amount of Carbon Dioxide concentration in the Earth’s atmosphere?
Thank you for your interest in Charles David Keeling’s work. Yes, his measurements have revealed a significant and alarming increase in atmospheric carbon dioxide concentrations. The Keeling Curve, which plots the concentration of CO2 over time, clearly shows a steady rise since the late 1950s.
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I love the unique information, I wonder what conclusions can we draw from this data?
I’m wondering if during the pandemic the results of the keeling curve were skewed (displayed less of a zig zag) because fewer emissions were released. If that’s the case might it be advantageous to reduce shipping volume during the winter months to counteract excess emissions?
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By sharing the story of Keeling’s pioneering research, this article emphasizes the importance of continuous monitoring and scientific inquiry in addressing climate change. The Keeling Curve serves as a vital reference point for researchers, policymakers, and the public to comprehend the impact of human activities on our planet’s atmosphere and take necessary actions to mitigate climate change.
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