There is a constant flow of news about Global Warming. One indicator of the drivers of Global Warming is the concentration of carbon dioxide concentrations. NOAA Report. We have previously explained how carbon dioxide and other greenhouse gases cause the atmosphere to warm. Knowing the current level of carbon dioxide in the air is essential. Based on the assumption that we have a well-mixed atmosphere one could in theory measure it anywhere. An isolated place like Mauna Loa in Hawaii is ideal except when the volcano is erupting. Usually, it is close to a perfect location. It is measured in more than one place since the assumption that the atmosphere is well-mixed is an approximation. NOAA reports on the level monthly and I thought this would be a good time to provide one of their reports and explain the Keeling Curve.
