One important example of this is the Keeling Curve - a series of measurements from 1958 to today which show a steady rise in of the concentration of carbon dioxide.
(One important example of this; is; the Keeling Curve) (a series of measurements from 1958 to today; show; a steady rise in of the concentration of carbon dioxide)
One important example of this a series of measurements from 1958 to today
is show
the Keeling Curve
a steady rise in of the concentration of carbon dioxide