Anthropogenic and natural changes in Arctic environments, as well as recognition of the shortcomings of our knowledge of Polar Bear ecology, are increasing the challenges for Polar Bear conservation and management. Higher ambient temperatures and erratic weather fluctuations, symptoms of anthropogenic climate change, are increasing across the range of polar bears. Polar Bears are dependent upon Arctic sea ice for access to their prey. Their dependence on an ephemeral habitat that exists as a function of sea surface and atmospheric temperatures means that climate warming poses the single most important threat to the long-term persistence of Polar Bears (Obbard et al. 2010). Arctic sea ice loss has thus far progressed faster than most climate models have predicted (Stroeve et al. 2007) with September sea extent declining at a linear rate of 14% per decade from 1979 through 2011 (Stroeve et al. 2012, Stroeve et al. 2014). Because changes in sea-ice are known to alter Polar Bear abundance, productivity, body condition, and distribution (Stirling et al. 1999, Fischbach et al. 2007, Schleibe et al. 2008, Durner et al. 2009, Regehr et al. 2010, Rode et al. 2010a, 2012, 2014b, Bromaghin et al. 2015), continued climate warming will increase future uncertainty and pose severe risks to the welfare of Polar Bear subpopulations (Stirling and Derocher 2012, Derocher et al. 2013).