During the Arctic Science Summit Week 2013, a trilateral agreement in form of a 5-year Memorandum of Agreement (MoA) between WCRP Climate and Cryosphere Project (CliC), the International Arctic Science Committee (IASC) and the Scientific Committee on Antarctic Research (SCAR) was signed. It supersedes the WCRP/IASC/SCAR Agreement of 2008. The Parties share common goals of working internationally and across disciplines to increase the understanding of the cryospheric elements of the Earth’s climate system and their interconnections. IASC, SCAR and CliC have a long history of successful collaboration through a number of activities and initiatives involving ice sheet mass balance, sea ice, permafrost, and polar oceanography.