The atmospheric concentration of carbon dioxide also increased during this period so we can assess the contribution of the increase of this greenhouse gas to climate warming.
(The atmospheric concentration of carbon dioxide; increased; T:during this period; so we can assess the contribution of the increase of this greenhouse gas) (we; can assess; the contribution of the increase of this greenhouse gas)
The atmospheric concentration of carbon dioxide we
increased can assess
T:during this period so we can assess the contribution of the increase of this greenhouse gas
the contribution of the increase of this greenhouse gas