The ArcGIS user is given data for the Arctic and is asked to perform various...

The ArcGIS user is given data for the Arctic and is asked to perform various types of analysis using the data. The data extends from the North Pole south to 70 degrees North Latitude Data layers may contain points lines, or polygons, and include ice surveys from NOAA depth contours: continental margins, locations of known and suspected oil reserves, endangered species habitat, and territorial boundaries for nations having Arctic coastline.

Which map projection should be used for the data to allow the most accurate buffering of those areas, in order to comply with the U.S court decision that ships may not approach closer than 20 nautical miles to a seal rookery?