From an NRA press release:
The NRA submitted comments . . . in opposition to the proposed listing [of polar bears] noting that the threats associated with climate change, as they relate to melting sea ice and [the bear's] survival, are not well enough known to predict what will happen in a half century from now, and are outside the scoop of [Endangered Species Act] and the authority and ability of the [US Fish and Wildlife] Service to correct. What is absolutely certain is that the listing will threaten the future of polar bear conservation programs and research in Canada that rely on revenues from hunters, including US-based hunters. Thirteen populations of polar bears in Canada have been approved by the Service for trophy importation. An ESA listing will close the border to trophy imports and dry up a major source of conservation funding.