The role of the oceans in providing poleward energy flux within the earth's fluid envelope is re-examined in regard to effective transport mechanisms. A hypothetical model near 30 degrees north latitude is found to produce a sizeable poleward energy transport when effects of closed vertical circulations operating in meridional planes are considered. Available data for the Atlantic do not conflict with this result. It is suggested that the importance of such meridional circulations should not be disregarded in computations of the global energy balance.