Concentrations of carbon dioxide as measured at Cape Point show an overall increase of approximately 0.6% per year.
(Concentrations of carbon dioxide; measured; at Cape Point) (Concentrations of carbon dioxide as measured at Cape Point; show; an overall increase of approximately 0.6% per year)
Concentrations of carbon dioxide Concentrations of carbon dioxide as measured at Cape Point
measured show
at Cape Point
an overall increase of approximately 0.6% per year