The overall effect of these actions has been to dramatically increase the concentration of carbon dioxide in the atmosphere.
(The overall effect of these actions; has been; to dramatically increase the concentration of carbon dioxide in the atmosphere) (The overall effect of these actions; to dramatically increase; the concentration of carbon dioxide in the atmosphere)
The overall effect of these actions The overall effect of these actions
has been to dramatically increase
to dramatically increase the concentration of carbon dioxide in the atmosphere
the concentration of carbon dioxide in the atmosphere