Alaska is home to most of the U.S.'s polar climate zones, particularly in its northern regions where freezing temperatures dominate year-round.

Alaska is the U.S. state that contains the majority of the country's polar climate zones, especially in its northernmost regions. These areas experience extreme cold, with freezing temperatures year-round and long, harsh winters. The Arctic climate in Alaska is characterized by minimal sunlight during the winter months and short, cool summers. The state's polar regions are home to unique wildlife, including polar bears, caribou, and arctic foxes, adapted to survive in such extreme conditions. Alaska's polar climate zones are critical to understanding the broader impacts of climate change and environmental changes in the Arctic region.