original: It overlies the North Pole, touching North America in the Western hemisphere and Scandinavia and Asia in the Eastern hemisphere.
simplifications: It lies over the North Pole touching North America in the West and Scandinavia and Asia in the East. It's over the North Pole touching North Americain in the west and Scandinavia plus Asia in the East. It overlies the North Pole. It also touches North America and Scandinavia and Asia. It lies over the North Pole, touching North America in the Western hemisphere. It also touches Scandinavia and Asia in the Eastern hemisphere. It overlies the North Pole. It touches North America in the Western hemisphere and Scandinavia and Asia in the Eastern hemisphere. It lies above the North Pole and touches North America, Scandinavia, and Asia. It overlies the North Pole in the Eastern and Western hemispheres from North America to Scandinavia and Asia. It touches North America in the West and Scandinavia and Asia in the East while covering the North Pole. It lie on top of the North Pole. It touches  North America in the Western hemisphere and Scandinavia and Asia in the Eastern hemisphere. It surrounds the North Pole, touching North America in the Western Hemisphere, and Scandinavia and Asia in the Eastern Hemisphere.