On the “Fallacy of a hoax” (Sun Herald, Nov. 27): Only land-based ice is used in the calculation of sea-level rise. Much of the Arctic and all of the Antarctic are ice-covered archipelagos.
Greenland alone has 660,000 square miles of ice, which runs from more than a mile to nearly 2 miles deep. Satellite data shows it is melting at an ever-increasing rate.
Does the author really think scientists are unaware of Archimedes’ principle?