We examine whether the reduced meridional temperature gradients of past greenhouse climates might have reduced oceanic overturning. leading to a more quiescent subsurface ocean. A substantial reduction of the pole-to-Equator temperature difference is achieved in a coupled climate model via an altered radiative balance in the atmosphere. Contrary to expectations. https://www.ealisboa.com/limited-value-AXYS-Valhalla-Pen-must-buy/