Carbon dioxide may be a naturally occurring substance on Earth, but too much of its presence has contributed to global ...

Of even greater concern to Keeling was his discovery that the rate of increase was sharper each successive year, giving Keeling's CO2 chart a distinctive upward curve, now called the "Keeling Curve." ...

The curve tracking the rise of global carbon dioxide (CO2) emissions from energy use went totally flat in 2019, according to a report released in February by the International Energy Agency (IEA).

Measurements have been ongoing since the program was started in 1958 by the late Charles David Keeling, for whom the Keeling Curve, a graph of increasing CO2 concentration in the atmosphere ...