Decades of research into Earth's past climate history has revealed astonishing past climate changes that highlight the capacity for our climate to change, and challenge our ability to explain their underlying mechanisms. In this seminar, we visit the reconstructed history of millennial abrupt climate change events during the last glacial period, and also the transition from the glacial period to the Holocene (aka deglaciation), and the possible dynamical mechanisms at play. We will focus specifically on an emerging hypothesis that emphasize teleconnection linkages between the northern and southern hemispheres as central in explaining key features of abrupt climate changes and deglaciation. The seminar will involve weekly readings and discussion.