A lack of persistent sea ice in waters around the Bering Strait this winter disrupted travel, damaged roads and other infrastructure, and prevented traditional hunting and fishing in several coastal communities in western Alaska.
In the 2015 edition of the State of the Climate report, climate and biology experts wrote about some dramatic impacts of warming on life in the ocean.
Walruses use sea ice for mating, giving birth, and resting, which means they face an increasing threat from global warming.