Gradual South‐North Climate Transition in the Atlantic Realm Within the Younger Dryas

The abrupt climate event Younger Dryas (YD) has been extensively studied; however, its structure is still poorly understood. Climate in northeastern Brazil very sensitive to the latitudinal position of intertropical convergence zone (ITCZ) associated with change Atlantic. Here, we report changes ITCZ within YD by using precise speleothem multiproxy records from Brazil. We provide evidence for a gradual northward migration preceding poleward shifts westerlies and polar front northern high latitudes YD. This can be attributed increase atmospheric CO2 concentration as consequence weakening Atlantic Meridional Overturning Circulation (AMOC). suggest that persistent might have triggered resumption AMOC reorganization atmosphere circulation during mid-YD.