ACD Logo        The Arctic Coastal Dynamics (ACD) program started in 1999 as an initiative of the International Permafrost Association (IPA), as a multi-disciplinary, multi-national forum to exchange ideas and information (co-sponsored by IASC and LOICZ). Since its inception, the ACD group produced significant contributions to International Conferences on Arctic Research Planning (ICARPs), to the International Polar Year (IPY) and to Arctic Observing (SAON, AOS). The overall objective of ACD is to improve understanding of circum-Arctic coastal dynamics as a function of environmental forcing, coastal geology and cryology, and morphodynamic behavior. The year 2016 marks the beginning of a new phase of activity, initiated by a group of young researchers who secured funding from the IPA to modernize the ACD website (http://arcticcoast.info), and organize a side meeting on June 19, 2016, at the International Conference on Permafrost. The new phase will continue and refine the pioneering effort of the ACD, and welcome the participation of new researchers and groups in the project.