One of the big disadvantages of a Mercator projection is that it cannot accurately project the areas around the north and south pole. A Mercator projection is not equally accurate in all directions, even away from the poles.
A cylindrical map projection in which the meridians and parallels of latitude appear as lines crossing at right angles and in which areas appear greater farther from the equator.
The Mercator projection is used for world maps, and is most accurate between 30 degrees north and south latitude. The further away you go from there, the more exaggerated it becomes. The equal-area...