We wish to thank the Leg 188 shipboard party and others who have contributed to the Scientific Results volume for their many helpful insights and contributions to better understanding Antarctic climate history. This synthesis is based on research that used samples and data provided by the Ocean Drilling Program (ODP), which is sponsored by the U.S. National Science Foundation (NSF) and participating countries under management of Joint Oceanographic Institutions (JOI), Inc. Participation of A. Cooper in this leg was supported by a grant from the U.S. Science Support Program. Philip O'Brien publishes with the permission of the Chief Executive Officer, Geoscience Australia. The manuscript has benefited from comments by Tom Davies, Angelo Camerlenghi, members of the Leg 188 shipboard party, and the ODP editorial staff.