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Anthropogenic global warming is occurring more rapidly in the Arctic than elsewhere, and has already caused significant negative effects on sea ice-dependent species such as polar bears. In the cover story of the Sept/Oct issue of Conservation Letters, Derocher et al examine rapid ecosystem change and polar bear conservation. The authors discuss issues that need consideration if large numbers of polar bears are forced to remain on land, or on offshore ice, with inadequate energy reserves to survive prolonged open water periods. Lead author Andrew Derocher contributed to the photo essay (including all photos) to highlight key observations from the paper. SCB members can log in to their member home page to read the paper.