David Pratt May 2001 Part 3 of 4 Part 3: Polar Puzzles 1. The open polar sea 2. The north pole controversy 3. Polar land cover-up? 4. Flights of fancy 5. Auroras and the poles References 1. The open polar sea Many 19th-century explorers believed that beyond the belt of pack ice at the perimeter of the Arctic Ocean there was an open polar sea, and possibly continental land as well. The idea of an open polar sea took […] Read More