The 19-million-acre Arctic National Wildlife Refuge has been closed to oil exploration since 1980 due to concerns about the impact on the region's caribou, polar bears and other animals.
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Thu, 05/25/2017 - 9:30am
The 19-million-acre Arctic National Wildlife Refuge has been closed to oil exploration since 1980 due to concerns about the impact on the region's caribou, polar bears and other animals.