I don't think he's just talking about less evaporation meaning
less ocean heat loss.
Not exact matches
Thus the radiation
heat balance, according to the IPCC, in the NH must be far
less positive than in the SH (as example: a
loss of 5 W / m2 TOA due to aerosols in the NH Indian
Ocean).
Warm
oceans take a lot of
heat loss to freeze and the closer to freezing they start the
less heat loss before ice forms.
The reason, Werner said, is because the
loss of snow and ice makes the earth's surface
less reflective, meaning solar radiation — or
heat — is absorbed in greater amounts by the exposed dark
ocean or tundra.
When the Arctic freezes over the ice insulates the sea and slows the
heat loss from the N pole, when the Arctic
ocean has
less ice then more
heat radiates off to space.