Sea ice plays a central part in the Earth system: it cools our planet, shapes ocean currents, and offers a habitat for countless species. Yet climate change is causing sea ice in the polar regions to [...] increasingly dwindle. In the Antarctic, sea-ice retreat is currently so intense that we could see a new record minimum in the second half of February 2023. The SEA ICE PORTAL offers essential information on [...] interface and new, more accessible content specially targeting users who are newcomers to the topic of sea ice.