Not only does sea ice provide an irreplaceable habitat for many polar species, but it also is essential for the proper functioning of Earth’s climate system. Reductions of sea ice extent are accelerating warming along with exposing otherwise protected areas to resource exploitation. Track the status of sea ice in the Arctic and Antarctic using the latest information from NOAA at the National Snow and Ice Data Center available in Esri’s Living Atlas and learn more about changing conditions in the polar regions.