The Climate Security Expert Network (CSEN) Roundtable took place on 28 January 2021 in a digital format. It aimed at updating CSEN members on progress and achievements within the network, reviewing past political developments and future possibilities relating to climate and security, especially within the UN Security Council, and presenting the flagship climate security risk and foresight assessment, Weathering Risk. The event was also an opportunity for CSEN experts to share their thoughts on key priorities for the UN Security Council on climate and security, hear about the perspectives of incoming UN Security Council member states, and connect and exchange with other CSEN experts.